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linux / linux / kernel / git / paulmck / linux-rcu / 3bbb0a8d640cbdd5d9fa2e3d61292bcae8a29466 / . / scripts / analyze_suspend.py
blob: 93e1fd40f43053e599c3d986dd15fb574ea2fb76 [file] [log] [blame]
#!/usr/bin/python
#
# Tool for analyzing suspend/resume timing
# Copyright (c) 2013, Intel Corporation.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms and conditions of the GNU General Public License,
# version 2, as published by the Free Software Foundation.
#
# This program is distributed in the hope it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
#
# Authors:
# Todd Brandt <todd.e.brandt@linux.intel.com>
#
# Description:
# This tool is designed to assist kernel and OS developers in optimizing
# their linux stack's suspend/resume time. Using a kernel image built
# with a few extra options enabled, the tool will execute a suspend and
# will capture dmesg and ftrace data until resume is complete. This data
# is transformed into a device timeline and a callgraph to give a quick
# and detailed view of which devices and callbacks are taking the most
# time in suspend/resume. The output is a single html file which can be
# viewed in firefox or chrome.
#
# The following kernel build options are required:
# CONFIG_PM_DEBUG=y
# CONFIG_PM_SLEEP_DEBUG=y
# CONFIG_FTRACE=y
# CONFIG_FUNCTION_TRACER=y
# CONFIG_FUNCTION_GRAPH_TRACER=y
#
# For kernel versions older than 3.15:
# The following additional kernel parameters are required:
# (e.g. in file /etc/default/grub)
# GRUB_CMDLINE_LINUX_DEFAULT="... initcall_debug log_buf_len=16M ..."
#
# ----------------- LIBRARIES --------------------
import sys
import time
import os
import string
import re
import platform
from datetime import datetime
import struct
# ----------------- CLASSES --------------------
# Class: SystemValues
# Description:
# A global, single-instance container used to
# store system values and test parameters
class SystemValues:
version = 3.0
verbose = False
testdir = '.'
tpath = '/sys/kernel/debug/tracing/'
fpdtpath = '/sys/firmware/acpi/tables/FPDT'
epath = '/sys/kernel/debug/tracing/events/power/'
traceevents = [
'suspend_resume',
'device_pm_callback_end',
'device_pm_callback_start'
]
modename = {
'freeze': 'Suspend-To-Idle (S0)',
'standby': 'Power-On Suspend (S1)',
'mem': 'Suspend-to-RAM (S3)',
'disk': 'Suspend-to-disk (S4)'
}
mempath = '/dev/mem'
powerfile = '/sys/power/state'
suspendmode = 'mem'
hostname = 'localhost'
prefix = 'test'
teststamp = ''
dmesgfile = ''
ftracefile = ''
htmlfile = ''
rtcwake = False
rtcwaketime = 10
rtcpath = ''
android = False
adb = 'adb'
devicefilter = []
stamp = 0
execcount = 1
x2delay = 0
usecallgraph = False
usetraceevents = False
usetraceeventsonly = False
notestrun = False
altdevname = dict()
postresumetime = 0
tracertypefmt = '# tracer: (?P<t>.*)'
firmwarefmt = '# fwsuspend (?P<s>[0-9]*) fwresume (?P<r>[0-9]*)$'
postresumefmt = '# post resume time (?P<t>[0-9]*)$'
stampfmt = '# suspend-(?P<m>[0-9]{2})(?P<d>[0-9]{2})(?P<y>[0-9]{2})-'+\
'(?P<H>[0-9]{2})(?P<M>[0-9]{2})(?P<S>[0-9]{2})'+\
' (?P<host>.*) (?P<mode>.*) (?P<kernel>.*)$'
def __init__(self):
self.hostname = platform.node()
if(self.hostname == ''):
self.hostname = 'localhost'
rtc = "rtc0"
if os.path.exists('/dev/rtc'):
rtc = os.readlink('/dev/rtc')
rtc = '/sys/class/rtc/'+rtc
if os.path.exists(rtc) and os.path.exists(rtc+'/date') and \
os.path.exists(rtc+'/time') and os.path.exists(rtc+'/wakealarm'):
self.rtcpath = rtc
def setOutputFile(self):
if((self.htmlfile == '') and (self.dmesgfile != '')):
m = re.match('(?P<name>.*)_dmesg\.txt$', self.dmesgfile)
if(m):
self.htmlfile = m.group('name')+'.html'
if((self.htmlfile == '') and (self.ftracefile != '')):
m = re.match('(?P<name>.*)_ftrace\.txt$', self.ftracefile)
if(m):
self.htmlfile = m.group('name')+'.html'
if(self.htmlfile == ''):
self.htmlfile = 'output.html'
def initTestOutput(self, subdir):
if(not self.android):
self.prefix = self.hostname
v = open('/proc/version', 'r').read().strip()
kver = string.split(v)[2]
else:
self.prefix = 'android'
v = os.popen(self.adb+' shell cat /proc/version').read().strip()
kver = string.split(v)[2]
testtime = datetime.now().strftime('suspend-%m%d%y-%H%M%S')
if(subdir != "."):
self.testdir = subdir+"/"+testtime
else:
self.testdir = testtime
self.teststamp = \
'# '+testtime+' '+self.prefix+' '+self.suspendmode+' '+kver
self.dmesgfile = \
self.testdir+'/'+self.prefix+'_'+self.suspendmode+'_dmesg.txt'
self.ftracefile = \
self.testdir+'/'+self.prefix+'_'+self.suspendmode+'_ftrace.txt'
self.htmlfile = \
self.testdir+'/'+self.prefix+'_'+self.suspendmode+'.html'
os.mkdir(self.testdir)
def setDeviceFilter(self, devnames):
self.devicefilter = string.split(devnames)
def rtcWakeAlarm(self):
os.system('echo 0 > '+self.rtcpath+'/wakealarm')
outD = open(self.rtcpath+'/date', 'r').read().strip()
outT = open(self.rtcpath+'/time', 'r').read().strip()
mD = re.match('^(?P<y>[0-9]*)-(?P<m>[0-9]*)-(?P<d>[0-9]*)', outD)
mT = re.match('^(?P<h>[0-9]*):(?P<m>[0-9]*):(?P<s>[0-9]*)', outT)
if(mD and mT):
# get the current time from hardware
utcoffset = int((datetime.now() - datetime.utcnow()).total_seconds())
dt = datetime(\
int(mD.group('y')), int(mD.group('m')), int(mD.group('d')),
int(mT.group('h')), int(mT.group('m')), int(mT.group('s')))
nowtime = int(dt.strftime('%s')) + utcoffset
else:
# if hardware time fails, use the software time
nowtime = int(datetime.now().strftime('%s'))
alarm = nowtime + self.rtcwaketime
os.system('echo %d > %s/wakealarm' % (alarm, self.rtcpath))
sysvals = SystemValues()
# Class: DeviceNode
# Description:
# A container used to create a device hierachy, with a single root node
# and a tree of child nodes. Used by Data.deviceTopology()
class DeviceNode:
name = ''
children = 0
depth = 0
def __init__(self, nodename, nodedepth):
self.name = nodename
self.children = []
self.depth = nodedepth
# Class: Data
# Description:
# The primary container for suspend/resume test data. There is one for
# each test run. The data is organized into a cronological hierarchy:
# Data.dmesg {
# root structure, started as dmesg & ftrace, but now only ftrace
# contents: times for suspend start/end, resume start/end, fwdata
# phases {
# 10 sequential, non-overlapping phases of S/R
# contents: times for phase start/end, order/color data for html
# devlist {
# device callback or action list for this phase
# device {
# a single device callback or generic action
# contents: start/stop times, pid/cpu/driver info
# parents/children, html id for timeline/callgraph
# optionally includes an ftrace callgraph
# optionally includes intradev trace events
# }
# }
# }
# }
#
class Data:
dmesg = {} # root data structure
phases = [] # ordered list of phases
start = 0.0 # test start
end = 0.0 # test end
tSuspended = 0.0 # low-level suspend start
tResumed = 0.0 # low-level resume start
tLow = 0.0 # time spent in low-level suspend (standby/freeze)
fwValid = False # is firmware data available
fwSuspend = 0 # time spent in firmware suspend
fwResume = 0 # time spent in firmware resume
dmesgtext = [] # dmesg text file in memory
testnumber = 0
idstr = ''
html_device_id = 0
stamp = 0
outfile = ''
def __init__(self, num):
idchar = 'abcdefghijklmnopqrstuvwxyz'
self.testnumber = num
self.idstr = idchar[num]
self.dmesgtext = []
self.phases = []
self.dmesg = { # fixed list of 10 phases
'suspend_prepare': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#CCFFCC', 'order': 0},
'suspend': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#88FF88', 'order': 1},
'suspend_late': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#00AA00', 'order': 2},
'suspend_noirq': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#008888', 'order': 3},
'suspend_machine': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#0000FF', 'order': 4},
'resume_machine': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#FF0000', 'order': 5},
'resume_noirq': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#FF9900', 'order': 6},
'resume_early': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#FFCC00', 'order': 7},
'resume': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#FFFF88', 'order': 8},
'resume_complete': {'list': dict(), 'start': -1.0, 'end': -1.0,
'row': 0, 'color': '#FFFFCC', 'order': 9}
}
self.phases = self.sortedPhases()
def getStart(self):
return self.dmesg[self.phases[0]]['start']
def setStart(self, time):
self.start = time
self.dmesg[self.phases[0]]['start'] = time
def getEnd(self):
return self.dmesg[self.phases[-1]]['end']
def setEnd(self, time):
self.end = time
self.dmesg[self.phases[-1]]['end'] = time
def isTraceEventOutsideDeviceCalls(self, pid, time):
for phase in self.phases:
list = self.dmesg[phase]['list']
for dev in list:
d = list[dev]
if(d['pid'] == pid and time >= d['start'] and
time <= d['end']):
return False
return True
def addIntraDevTraceEvent(self, action, name, pid, time):
if(action == 'mutex_lock_try'):
color = 'red'
elif(action == 'mutex_lock_pass'):
color = 'green'
elif(action == 'mutex_unlock'):
color = 'blue'
else:
# create separate colors based on the name
v1 = len(name)*10 % 256
v2 = string.count(name, 'e')*100 % 256
v3 = ord(name[0])*20 % 256
color = '#%06X' % ((v1*0x10000) + (v2*0x100) + v3)
for phase in self.phases:
list = self.dmesg[phase]['list']
for dev in list:
d = list[dev]
if(d['pid'] == pid and time >= d['start'] and
time <= d['end']):
e = TraceEvent(action, name, color, time)
if('traceevents' not in d):
d['traceevents'] = []
d['traceevents'].append(e)
return d
break
return 0
def capIntraDevTraceEvent(self, action, name, pid, time):
for phase in self.phases:
list = self.dmesg[phase]['list']
for dev in list:
d = list[dev]
if(d['pid'] == pid and time >= d['start'] and
time <= d['end']):
if('traceevents' not in d):
return
for e in d['traceevents']:
if(e.action == action and
e.name == name and not e.ready):
e.length = time - e.time
e.ready = True
break
return
def trimTimeVal(self, t, t0, dT, left):
if left:
if(t > t0):
if(t - dT < t0):
return t0
return t - dT
else:
return t
else:
if(t < t0 + dT):
if(t > t0):
return t0 + dT
return t + dT
else:
return t
def trimTime(self, t0, dT, left):
self.tSuspended = self.trimTimeVal(self.tSuspended, t0, dT, left)
self.tResumed = self.trimTimeVal(self.tResumed, t0, dT, left)
self.start = self.trimTimeVal(self.start, t0, dT, left)
self.end = self.trimTimeVal(self.end, t0, dT, left)
for phase in self.phases:
p = self.dmesg[phase]
p['start'] = self.trimTimeVal(p['start'], t0, dT, left)
p['end'] = self.trimTimeVal(p['end'], t0, dT, left)
list = p['list']
for name in list:
d = list[name]
d['start'] = self.trimTimeVal(d['start'], t0, dT, left)
d['end'] = self.trimTimeVal(d['end'], t0, dT, left)
if('ftrace' in d):
cg = d['ftrace']
cg.start = self.trimTimeVal(cg.start, t0, dT, left)
cg.end = self.trimTimeVal(cg.end, t0, dT, left)
for line in cg.list:
line.time = self.trimTimeVal(line.time, t0, dT, left)
if('traceevents' in d):
for e in d['traceevents']:
e.time = self.trimTimeVal(e.time, t0, dT, left)
def normalizeTime(self, tZero):
# first trim out any standby or freeze clock time
if(self.tSuspended != self.tResumed):
if(self.tResumed > tZero):
self.trimTime(self.tSuspended, \
self.tResumed-self.tSuspended, True)
else:
self.trimTime(self.tSuspended, \
self.tResumed-self.tSuspended, False)
# shift the timeline so that tZero is the new 0
self.tSuspended -= tZero
self.tResumed -= tZero
self.start -= tZero
self.end -= tZero
for phase in self.phases:
p = self.dmesg[phase]
p['start'] -= tZero
p['end'] -= tZero
list = p['list']
for name in list:
d = list[name]
d['start'] -= tZero
d['end'] -= tZero
if('ftrace' in d):
cg = d['ftrace']
cg.start -= tZero
cg.end -= tZero
for line in cg.list:
line.time -= tZero
if('traceevents' in d):
for e in d['traceevents']:
e.time -= tZero
def newPhaseWithSingleAction(self, phasename, devname, start, end, color):
for phase in self.phases:
self.dmesg[phase]['order'] += 1
self.html_device_id += 1
devid = '%s%d' % (self.idstr, self.html_device_id)
list = dict()
list[devname] = \
{'start': start, 'end': end, 'pid': 0, 'par': '',
'length': (end-start), 'row': 0, 'id': devid, 'drv': '' };
self.dmesg[phasename] = \
{'list': list, 'start': start, 'end': end,
'row': 0, 'color': color, 'order': 0}
self.phases = self.sortedPhases()
def newPhase(self, phasename, start, end, color, order):
if(order < 0):
order = len(self.phases)
for phase in self.phases[order:]:
self.dmesg[phase]['order'] += 1
if(order > 0):
p = self.phases[order-1]
self.dmesg[p]['end'] = start
if(order < len(self.phases)):
p = self.phases[order]
self.dmesg[p]['start'] = end
list = dict()
self.dmesg[phasename] = \
{'list': list, 'start': start, 'end': end,
'row': 0, 'color': color, 'order': order}
self.phases = self.sortedPhases()
def setPhase(self, phase, ktime, isbegin):
if(isbegin):
self.dmesg[phase]['start'] = ktime
else:
self.dmesg[phase]['end'] = ktime
def dmesgSortVal(self, phase):
return self.dmesg[phase]['order']
def sortedPhases(self):
return sorted(self.dmesg, key=self.dmesgSortVal)
def sortedDevices(self, phase):
list = self.dmesg[phase]['list']
slist = []
tmp = dict()
for devname in list:
dev = list[devname]
tmp[dev['start']] = devname
for t in sorted(tmp):
slist.append(tmp[t])
return slist
def fixupInitcalls(self, phase, end):
# if any calls never returned, clip them at system resume end
phaselist = self.dmesg[phase]['list']
for devname in phaselist:
dev = phaselist[devname]
if(dev['end'] < 0):
dev['end'] = end
vprint('%s (%s): callback didnt return' % (devname, phase))
def deviceFilter(self, devicefilter):
# remove all by the relatives of the filter devnames
filter = []
for phase in self.phases:
list = self.dmesg[phase]['list']
for name in devicefilter:
dev = name
while(dev in list):
if(dev not in filter):
filter.append(dev)
dev = list[dev]['par']
children = self.deviceDescendants(name, phase)
for dev in children:
if(dev not in filter):
filter.append(dev)
for phase in self.phases:
list = self.dmesg[phase]['list']
rmlist = []
for name in list:
pid = list[name]['pid']
if(name not in filter and pid >= 0):
rmlist.append(name)
for name in rmlist:
del list[name]
def fixupInitcallsThatDidntReturn(self):
# if any calls never returned, clip them at system resume end
for phase in self.phases:
self.fixupInitcalls(phase, self.getEnd())
def newActionGlobal(self, name, start, end):
# which phase is this device callback or action "in"
targetphase = "none"
overlap = 0.0
for phase in self.phases:
pstart = self.dmesg[phase]['start']
pend = self.dmesg[phase]['end']
o = max(0, min(end, pend) - max(start, pstart))
if(o > overlap):
targetphase = phase
overlap = o
if targetphase in self.phases:
self.newAction(targetphase, name, -1, '', start, end, '')
return True
return False
def newAction(self, phase, name, pid, parent, start, end, drv):
# new device callback for a specific phase
self.html_device_id += 1
devid = '%s%d' % (self.idstr, self.html_device_id)
list = self.dmesg[phase]['list']
length = -1.0
if(start >= 0 and end >= 0):
length = end - start
list[name] = {'start': start, 'end': end, 'pid': pid, 'par': parent,
'length': length, 'row': 0, 'id': devid, 'drv': drv }
def deviceIDs(self, devlist, phase):
idlist = []
list = self.dmesg[phase]['list']
for devname in list:
if devname in devlist:
idlist.append(list[devname]['id'])
return idlist
def deviceParentID(self, devname, phase):
pdev = ''
pdevid = ''
list = self.dmesg[phase]['list']
if devname in list:
pdev = list[devname]['par']
if pdev in list:
return list[pdev]['id']
return pdev
def deviceChildren(self, devname, phase):
devlist = []
list = self.dmesg[phase]['list']
for child in list:
if(list[child]['par'] == devname):
devlist.append(child)
return devlist
def deviceDescendants(self, devname, phase):
children = self.deviceChildren(devname, phase)
family = children
for child in children:
family += self.deviceDescendants(child, phase)
return family
def deviceChildrenIDs(self, devname, phase):
devlist = self.deviceChildren(devname, phase)
return self.deviceIDs(devlist, phase)
def printDetails(self):
vprint(' test start: %f' % self.start)
for phase in self.phases:
dc = len(self.dmesg[phase]['list'])
vprint(' %16s: %f - %f (%d devices)' % (phase, \
self.dmesg[phase]['start'], self.dmesg[phase]['end'], dc))
vprint(' test end: %f' % self.end)
def masterTopology(self, name, list, depth):
node = DeviceNode(name, depth)
for cname in list:
clist = self.deviceChildren(cname, 'resume')
cnode = self.masterTopology(cname, clist, depth+1)
node.children.append(cnode)
return node
def printTopology(self, node):
html = ''
if node.name:
info = ''
drv = ''
for phase in self.phases:
list = self.dmesg[phase]['list']
if node.name in list:
s = list[node.name]['start']
e = list[node.name]['end']
if list[node.name]['drv']:
drv = ' {'+list[node.name]['drv']+'}'
info += ('<li>%s: %.3fms</li>' % (phase, (e-s)*1000))
html += '<li><b>'+node.name+drv+'</b>'
if info:
html += '<ul>'+info+'</ul>'
html += '</li>'
if len(node.children) > 0:
html += '<ul>'
for cnode in node.children:
html += self.printTopology(cnode)
html += '</ul>'
return html
def rootDeviceList(self):
# list of devices graphed
real = []
for phase in self.dmesg:
list = self.dmesg[phase]['list']
for dev in list:
if list[dev]['pid'] >= 0 and dev not in real:
real.append(dev)
# list of top-most root devices
rootlist = []
for phase in self.dmesg:
list = self.dmesg[phase]['list']
for dev in list:
pdev = list[dev]['par']
if(re.match('[0-9]*-[0-9]*\.[0-9]*[\.0-9]*\:[\.0-9]*$', pdev)):
continue
if pdev and pdev not in real and pdev not in rootlist:
rootlist.append(pdev)
return rootlist
def deviceTopology(self):
rootlist = self.rootDeviceList()
master = self.masterTopology('', rootlist, 0)
return self.printTopology(master)
# Class: TraceEvent
# Description:
# A container for trace event data found in the ftrace file
class TraceEvent:
ready = False
name = ''
time = 0.0
color = '#FFFFFF'
length = 0.0
action = ''
def __init__(self, a, n, c, t):
self.action = a
self.name = n
self.color = c
self.time = t
# Class: FTraceLine
# Description:
# A container for a single line of ftrace data. There are six basic types:
# callgraph line:
# call: " dpm_run_callback() {"
# return: " }"
# leaf: " dpm_run_callback();"
# trace event:
# tracing_mark_write: SUSPEND START or RESUME COMPLETE
# suspend_resume: phase or custom exec block data
# device_pm_callback: device callback info
class FTraceLine:
time = 0.0
length = 0.0
fcall = False
freturn = False
fevent = False
depth = 0
name = ''
type = ''
def __init__(self, t, m, d):
self.time = float(t)
# is this a trace event
if(d == 'traceevent' or re.match('^ *\/\* *(?P<msg>.*) \*\/ *$', m)):
if(d == 'traceevent'):
# nop format trace event
msg = m
else:
# function_graph format trace event
em = re.match('^ *\/\* *(?P<msg>.*) \*\/ *$', m)
msg = em.group('msg')
emm = re.match('^(?P<call>.*?): (?P<msg>.*)', msg)
if(emm):
self.name = emm.group('msg')
self.type = emm.group('call')
else:
self.name = msg
self.fevent = True
return
# convert the duration to seconds
if(d):
self.length = float(d)/1000000
# the indentation determines the depth
match = re.match('^(?P<d> *)(?P<o>.*)$', m)
if(not match):
return
self.depth = self.getDepth(match.group('d'))
m = match.group('o')
# function return
if(m[0] == '}'):
self.freturn = True
if(len(m) > 1):
# includes comment with function name
match = re.match('^} *\/\* *(?P<n>.*) *\*\/$', m)
if(match):
self.name = match.group('n')
# function call
else:
self.fcall = True
# function call with children
if(m[-1] == '{'):
match = re.match('^(?P<n>.*) *\(.*', m)
if(match):
self.name = match.group('n')
# function call with no children (leaf)
elif(m[-1] == ';'):
self.freturn = True
match = re.match('^(?P<n>.*) *\(.*', m)
if(match):
self.name = match.group('n')
# something else (possibly a trace marker)
else:
self.name = m
def getDepth(self, str):
return len(str)/2
def debugPrint(self, dev):
if(self.freturn and self.fcall):
print('%s -- %f (%02d): %s(); (%.3f us)' % (dev, self.time, \
self.depth, self.name, self.length*1000000))
elif(self.freturn):
print('%s -- %f (%02d): %s} (%.3f us)' % (dev, self.time, \
self.depth, self.name, self.length*1000000))
else:
print('%s -- %f (%02d): %s() { (%.3f us)' % (dev, self.time, \
self.depth, self.name, self.length*1000000))
# Class: FTraceCallGraph
# Description:
# A container for the ftrace callgraph of a single recursive function.
# This can be a dpm_run_callback, dpm_prepare, or dpm_complete callgraph
# Each instance is tied to a single device in a single phase, and is
# comprised of an ordered list of FTraceLine objects
class FTraceCallGraph:
start = -1.0
end = -1.0
list = []
invalid = False
depth = 0
def __init__(self):
self.start = -1.0
self.end = -1.0
self.list = []
self.depth = 0
def setDepth(self, line):
if(line.fcall and not line.freturn):
line.depth = self.depth
self.depth += 1
elif(line.freturn and not line.fcall):
self.depth -= 1
line.depth = self.depth
else:
line.depth = self.depth
def addLine(self, line, match):
if(not self.invalid):
self.setDepth(line)
if(line.depth == 0 and line.freturn):
if(self.start < 0):
self.start = line.time
self.end = line.time
self.list.append(line)
return True
if(self.invalid):
return False
if(len(self.list) >= 1000000 or self.depth < 0):
if(len(self.list) > 0):
first = self.list[0]
self.list = []
self.list.append(first)
self.invalid = True
if(not match):
return False
id = 'task %s cpu %s' % (match.group('pid'), match.group('cpu'))
window = '(%f - %f)' % (self.start, line.time)
if(self.depth < 0):
print('Too much data for '+id+\
' (buffer overflow), ignoring this callback')
else:
print('Too much data for '+id+\
' '+window+', ignoring this callback')
return False
self.list.append(line)
if(self.start < 0):
self.start = line.time
return False
def slice(self, t0, tN):
minicg = FTraceCallGraph()
count = -1
firstdepth = 0
for l in self.list:
if(l.time < t0 or l.time > tN):
continue
if(count < 0):
if(not l.fcall or l.name == 'dev_driver_string'):
continue
firstdepth = l.depth
count = 0
l.depth -= firstdepth
minicg.addLine(l, 0)
if((count == 0 and l.freturn and l.fcall) or
(count > 0 and l.depth <= 0)):
break
count += 1
return minicg
def sanityCheck(self):
stack = dict()
cnt = 0
for l in self.list:
if(l.fcall and not l.freturn):
stack[l.depth] = l
cnt += 1
elif(l.freturn and not l.fcall):
if(l.depth not in stack):
return False
stack[l.depth].length = l.length
stack[l.depth] = 0
l.length = 0
cnt -= 1
if(cnt == 0):
return True
return False
def debugPrint(self, filename):
if(filename == 'stdout'):
print('[%f - %f]') % (self.start, self.end)
for l in self.list:
if(l.freturn and l.fcall):
print('%f (%02d): %s(); (%.3f us)' % (l.time, \
l.depth, l.name, l.length*1000000))
elif(l.freturn):
print('%f (%02d): %s} (%.3f us)' % (l.time, \
l.depth, l.name, l.length*1000000))
else:
print('%f (%02d): %s() { (%.3f us)' % (l.time, \
l.depth, l.name, l.length*1000000))
print(' ')
else:
fp = open(filename, 'w')
print(filename)
for l in self.list:
if(l.freturn and l.fcall):
fp.write('%f (%02d): %s(); (%.3f us)\n' % (l.time, \
l.depth, l.name, l.length*1000000))
elif(l.freturn):
fp.write('%f (%02d): %s} (%.3f us)\n' % (l.time, \
l.depth, l.name, l.length*1000000))
else:
fp.write('%f (%02d): %s() { (%.3f us)\n' % (l.time, \
l.depth, l.name, l.length*1000000))
fp.close()
# Class: Timeline
# Description:
# A container for a suspend/resume html timeline. In older versions
# of the script there were multiple timelines, but in the latest
# there is only one.
class Timeline:
html = {}
scaleH = 0.0 # height of the row as a percent of the timeline height
rowH = 0.0 # height of each row in percent of the timeline height
row_height_pixels = 30
maxrows = 0
height = 0
def __init__(self):
self.html = {
'timeline': '',
'legend': '',
'scale': ''
}
def setRows(self, rows):
self.maxrows = int(rows)
self.scaleH = 100.0/float(self.maxrows)
self.height = self.maxrows*self.row_height_pixels
r = float(self.maxrows - 1)
if(r < 1.0):
r = 1.0
self.rowH = (100.0 - self.scaleH)/r
# Class: TestRun
# Description:
# A container for a suspend/resume test run. This is necessary as
# there could be more than one, and they need to be separate.
class TestRun:
ftrace_line_fmt_fg = \
'^ *(?P<time>[0-9\.]*) *\| *(?P<cpu>[0-9]*)\)'+\
' *(?P<proc>.*)-(?P<pid>[0-9]*) *\|'+\
'[ +!]*(?P<dur>[0-9\.]*) .*\| (?P<msg>.*)'
ftrace_line_fmt_nop = \
' *(?P<proc>.*)-(?P<pid>[0-9]*) *\[(?P<cpu>[0-9]*)\] *'+\
'(?P<flags>.{4}) *(?P<time>[0-9\.]*): *'+\
'(?P<msg>.*)'
ftrace_line_fmt = ftrace_line_fmt_nop
cgformat = False
ftemp = dict()
ttemp = dict()
inthepipe = False
tracertype = ''
data = 0
def __init__(self, dataobj):
self.data = dataobj
self.ftemp = dict()
self.ttemp = dict()
def isReady(self):
if(tracertype == '' or not data):
return False
return True
def setTracerType(self, tracer):
self.tracertype = tracer
if(tracer == 'function_graph'):
self.cgformat = True
self.ftrace_line_fmt = self.ftrace_line_fmt_fg
elif(tracer == 'nop'):
self.ftrace_line_fmt = self.ftrace_line_fmt_nop
else:
doError('Invalid tracer format: [%s]' % tracer, False)
# ----------------- FUNCTIONS --------------------
# Function: vprint
# Description:
# verbose print (prints only with -verbose option)
# Arguments:
# msg: the debug/log message to print
def vprint(msg):
global sysvals
if(sysvals.verbose):
print(msg)
# Function: initFtrace
# Description:
# Configure ftrace to use trace events and/or a callgraph
def initFtrace():
global sysvals
tp = sysvals.tpath
cf = 'dpm_run_callback'
if(sysvals.usetraceeventsonly):
cf = '-e dpm_prepare -e dpm_complete -e dpm_run_callback'
if(sysvals.usecallgraph or sysvals.usetraceevents):
print('INITIALIZING FTRACE...')
# turn trace off
os.system('echo 0 > '+tp+'tracing_on')
# set the trace clock to global
os.system('echo global > '+tp+'trace_clock')
# set trace buffer to a huge value
os.system('echo nop > '+tp+'current_tracer')
os.system('echo 100000 > '+tp+'buffer_size_kb')
# initialize the callgraph trace, unless this is an x2 run
if(sysvals.usecallgraph and sysvals.execcount == 1):
# set trace type
os.system('echo function_graph > '+tp+'current_tracer')
os.system('echo "" > '+tp+'set_ftrace_filter')
# set trace format options
os.system('echo funcgraph-abstime > '+tp+'trace_options')
os.system('echo funcgraph-proc > '+tp+'trace_options')
# focus only on device suspend and resume
os.system('cat '+tp+'available_filter_functions | grep '+\
cf+' > '+tp+'set_graph_function')
if(sysvals.usetraceevents):
# turn trace events on
events = iter(sysvals.traceevents)
for e in events:
os.system('echo 1 > '+sysvals.epath+e+'/enable')
# clear the trace buffer
os.system('echo "" > '+tp+'trace')
# Function: initFtraceAndroid
# Description:
# Configure ftrace to capture trace events
def initFtraceAndroid():
global sysvals
tp = sysvals.tpath
if(sysvals.usetraceevents):
print('INITIALIZING FTRACE...')
# turn trace off
os.system(sysvals.adb+" shell 'echo 0 > "+tp+"tracing_on'")
# set the trace clock to global
os.system(sysvals.adb+" shell 'echo global > "+tp+"trace_clock'")
# set trace buffer to a huge value
os.system(sysvals.adb+" shell 'echo nop > "+tp+"current_tracer'")
os.system(sysvals.adb+" shell 'echo 10000 > "+tp+"buffer_size_kb'")
# turn trace events on
events = iter(sysvals.traceevents)
for e in events:
os.system(sysvals.adb+" shell 'echo 1 > "+\
sysvals.epath+e+"/enable'")
# clear the trace buffer
os.system(sysvals.adb+" shell 'echo \"\" > "+tp+"trace'")
# Function: verifyFtrace
# Description:
# Check that ftrace is working on the system
# Output:
# True or False
def verifyFtrace():
global sysvals
# files needed for any trace data
files = ['buffer_size_kb', 'current_tracer', 'trace', 'trace_clock',
'trace_marker', 'trace_options', 'tracing_on']
# files needed for callgraph trace data
tp = sysvals.tpath
if(sysvals.usecallgraph):
files += [
'available_filter_functions',
'set_ftrace_filter',
'set_graph_function'
]
for f in files:
if(sysvals.android):
out = os.popen(sysvals.adb+' shell ls '+tp+f).read().strip()
if(out != tp+f):
return False
else:
if(os.path.exists(tp+f) == False):
return False
return True
# Function: parseStamp
# Description:
# Pull in the stamp comment line from the data file(s),
# create the stamp, and add it to the global sysvals object
# Arguments:
# m: the valid re.match output for the stamp line
def parseStamp(m, data):
global sysvals
data.stamp = {'time': '', 'host': '', 'mode': ''}
dt = datetime(int(m.group('y'))+2000, int(m.group('m')),
int(m.group('d')), int(m.group('H')), int(m.group('M')),
int(m.group('S')))
data.stamp['time'] = dt.strftime('%B %d %Y, %I:%M:%S %p')
data.stamp['host'] = m.group('host')
data.stamp['mode'] = m.group('mode')
data.stamp['kernel'] = m.group('kernel')
sysvals.suspendmode = data.stamp['mode']
if not sysvals.stamp:
sysvals.stamp = data.stamp
# Function: diffStamp
# Description:
# compare the host, kernel, and mode fields in 3 stamps
# Arguments:
# stamp1: string array with mode, kernel, and host
# stamp2: string array with mode, kernel, and host
# Return:
# True if stamps differ, False if they're the same
def diffStamp(stamp1, stamp2):
if 'host' in stamp1 and 'host' in stamp2:
if stamp1['host'] != stamp2['host']:
return True
if 'kernel' in stamp1 and 'kernel' in stamp2:
if stamp1['kernel'] != stamp2['kernel']:
return True
if 'mode' in stamp1 and 'mode' in stamp2:
if stamp1['mode'] != stamp2['mode']:
return True
return False
# Function: doesTraceLogHaveTraceEvents
# Description:
# Quickly determine if the ftrace log has some or all of the trace events
# required for primary parsing. Set the usetraceevents and/or
# usetraceeventsonly flags in the global sysvals object
def doesTraceLogHaveTraceEvents():
global sysvals
sysvals.usetraceeventsonly = True
sysvals.usetraceevents = False
for e in sysvals.traceevents:
out = os.popen('cat '+sysvals.ftracefile+' | grep "'+e+': "').read()
if(not out):
sysvals.usetraceeventsonly = False
if(e == 'suspend_resume' and out):
sysvals.usetraceevents = True
# Function: appendIncompleteTraceLog
# Description:
# [deprecated for kernel 3.15 or newer]
# Legacy support of ftrace outputs that lack the device_pm_callback
# and/or suspend_resume trace events. The primary data should be
# taken from dmesg, and this ftrace is used only for callgraph data
# or custom actions in the timeline. The data is appended to the Data
# objects provided.
# Arguments:
# testruns: the array of Data objects obtained from parseKernelLog
def appendIncompleteTraceLog(testruns):
global sysvals
# create TestRun vessels for ftrace parsing
testcnt = len(testruns)
testidx = -1
testrun = []
for data in testruns:
testrun.append(TestRun(data))
# extract the callgraph and traceevent data
vprint('Analyzing the ftrace data...')
tf = open(sysvals.ftracefile, 'r')
for line in tf:
# remove any latent carriage returns
line = line.replace('\r\n', '')
# grab the time stamp first (signifies the start of the test run)
m = re.match(sysvals.stampfmt, line)
if(m):
testidx += 1
parseStamp(m, testrun[testidx].data)
continue
# pull out any firmware data
if(re.match(sysvals.firmwarefmt, line)):
continue
# if we havent found a test time stamp yet keep spinning til we do
if(testidx < 0):
continue
# determine the trace data type (required for further parsing)
m = re.match(sysvals.tracertypefmt, line)
if(m):
tracer = m.group('t')
testrun[testidx].setTracerType(tracer)
continue
# parse only valid lines, if this isnt one move on
m = re.match(testrun[testidx].ftrace_line_fmt, line)
if(not m):
continue
# gather the basic message data from the line
m_time = m.group('time')
m_pid = m.group('pid')
m_msg = m.group('msg')
if(testrun[testidx].cgformat):
m_param3 = m.group('dur')
else:
m_param3 = 'traceevent'
if(m_time and m_pid and m_msg):
t = FTraceLine(m_time, m_msg, m_param3)
pid = int(m_pid)
else:
continue
# the line should be a call, return, or event
if(not t.fcall and not t.freturn and not t.fevent):
continue
# only parse the ftrace data during suspend/resume
data = testrun[testidx].data
if(not testrun[testidx].inthepipe):
# look for the suspend start marker
if(t.fevent):
if(t.name == 'SUSPEND START'):
testrun[testidx].inthepipe = True
data.setStart(t.time)
continue
else:
# trace event processing
if(t.fevent):
if(t.name == 'RESUME COMPLETE'):
testrun[testidx].inthepipe = False
data.setEnd(t.time)
if(testidx == testcnt - 1):
break
continue
# general trace events have two types, begin and end
if(re.match('(?P<name>.*) begin$', t.name)):
isbegin = True
elif(re.match('(?P<name>.*) end$', t.name)):
isbegin = False
else:
continue
m = re.match('(?P<name>.*)\[(?P<val>[0-9]*)\] .*', t.name)
if(m):
val = m.group('val')
if val == '0':
name = m.group('name')
else:
name = m.group('name')+'['+val+']'
else:
m = re.match('(?P<name>.*) .*', t.name)
name = m.group('name')
# special processing for trace events
if re.match('dpm_prepare\[.*', name):
continue
elif re.match('machine_suspend.*', name):
continue
elif re.match('suspend_enter\[.*', name):
if(not isbegin):
data.dmesg['suspend_prepare']['end'] = t.time
continue
elif re.match('dpm_suspend\[.*', name):
if(not isbegin):
data.dmesg['suspend']['end'] = t.time
continue
elif re.match('dpm_suspend_late\[.*', name):
if(isbegin):
data.dmesg['suspend_late']['start'] = t.time
else:
data.dmesg['suspend_late']['end'] = t.time
continue
elif re.match('dpm_suspend_noirq\[.*', name):
if(isbegin):
data.dmesg['suspend_noirq']['start'] = t.time
else:
data.dmesg['suspend_noirq']['end'] = t.time
continue
elif re.match('dpm_resume_noirq\[.*', name):
if(isbegin):
data.dmesg['resume_machine']['end'] = t.time
data.dmesg['resume_noirq']['start'] = t.time
else:
data.dmesg['resume_noirq']['end'] = t.time
continue
elif re.match('dpm_resume_early\[.*', name):
if(isbegin):
data.dmesg['resume_early']['start'] = t.time
else:
data.dmesg['resume_early']['end'] = t.time
continue
elif re.match('dpm_resume\[.*', name):
if(isbegin):
data.dmesg['resume']['start'] = t.time
else:
data.dmesg['resume']['end'] = t.time
continue
elif re.match('dpm_complete\[.*', name):
if(isbegin):
data.dmesg['resume_complete']['start'] = t.time
else:
data.dmesg['resume_complete']['end'] = t.time
continue
# is this trace event outside of the devices calls
if(data.isTraceEventOutsideDeviceCalls(pid, t.time)):
# global events (outside device calls) are simply graphed
if(isbegin):
# store each trace event in ttemp
if(name not in testrun[testidx].ttemp):
testrun[testidx].ttemp[name] = []
testrun[testidx].ttemp[name].append(\
{'begin': t.time, 'end': t.time})
else:
# finish off matching trace event in ttemp
if(name in testrun[testidx].ttemp):
testrun[testidx].ttemp[name][-1]['end'] = t.time
else:
if(isbegin):
data.addIntraDevTraceEvent('', name, pid, t.time)
else:
data.capIntraDevTraceEvent('', name, pid, t.time)
# call/return processing
elif sysvals.usecallgraph:
# create a callgraph object for the data
if(pid not in testrun[testidx].ftemp):
testrun[testidx].ftemp[pid] = []
testrun[testidx].ftemp[pid].append(FTraceCallGraph())
# when the call is finished, see which device matches it
cg = testrun[testidx].ftemp[pid][-1]
if(cg.addLine(t, m)):
testrun[testidx].ftemp[pid].append(FTraceCallGraph())
tf.close()
for test in testrun:
# add the traceevent data to the device hierarchy
if(sysvals.usetraceevents):
for name in test.ttemp:
for event in test.ttemp[name]:
begin = event['begin']
end = event['end']
# if event starts before timeline start, expand timeline
if(begin < test.data.start):
test.data.setStart(begin)
# if event ends after timeline end, expand the timeline
if(end > test.data.end):
test.data.setEnd(end)
test.data.newActionGlobal(name, begin, end)
# add the callgraph data to the device hierarchy
for pid in test.ftemp:
for cg in test.ftemp[pid]:
if(not cg.sanityCheck()):
id = 'task %s cpu %s' % (pid, m.group('cpu'))
vprint('Sanity check failed for '+\
id+', ignoring this callback')
continue
callstart = cg.start
callend = cg.end
for p in test.data.phases:
if(test.data.dmesg[p]['start'] <= callstart and
callstart <= test.data.dmesg[p]['end']):
list = test.data.dmesg[p]['list']
for devname in list:
dev = list[devname]
if(pid == dev['pid'] and
callstart <= dev['start'] and
callend >= dev['end']):
dev['ftrace'] = cg
break
if(sysvals.verbose):
test.data.printDetails()
# add the time in between the tests as a new phase so we can see it
if(len(testruns) > 1):
t1e = testruns[0].getEnd()
t2s = testruns[-1].getStart()
testruns[-1].newPhaseWithSingleAction('user mode', \
'user mode', t1e, t2s, '#FF9966')
# Function: parseTraceLog
# Description:
# Analyze an ftrace log output file generated from this app during
# the execution phase. Used when the ftrace log is the primary data source
# and includes the suspend_resume and device_pm_callback trace events
# The ftrace filename is taken from sysvals
# Output:
# An array of Data objects
def parseTraceLog():
global sysvals
vprint('Analyzing the ftrace data...')
if(os.path.exists(sysvals.ftracefile) == False):
doError('%s doesnt exist' % sysvals.ftracefile, False)
# extract the callgraph and traceevent data
testruns = []
testdata = []
testrun = 0
data = 0
tf = open(sysvals.ftracefile, 'r')
phase = 'suspend_prepare'
for line in tf:
# remove any latent carriage returns
line = line.replace('\r\n', '')
# stamp line: each stamp means a new test run
m = re.match(sysvals.stampfmt, line)
if(m):
data = Data(len(testdata))
testdata.append(data)
testrun = TestRun(data)
testruns.append(testrun)
parseStamp(m, data)
continue
if(not data):
continue
# firmware line: pull out any firmware data
m = re.match(sysvals.firmwarefmt, line)
if(m):
data.fwSuspend = int(m.group('s'))
data.fwResume = int(m.group('r'))
if(data.fwSuspend > 0 or data.fwResume > 0):
data.fwValid = True
continue
# tracer type line: determine the trace data type
m = re.match(sysvals.tracertypefmt, line)
if(m):
tracer = m.group('t')
testrun.setTracerType(tracer)
continue
# post resume time line: did this test run include post-resume data
m = re.match(sysvals.postresumefmt, line)
if(m):
t = int(m.group('t'))
if(t > 0):
sysvals.postresumetime = t
continue
# ftrace line: parse only valid lines
m = re.match(testrun.ftrace_line_fmt, line)
if(not m):
continue
# gather the basic message data from the line
m_time = m.group('time')
m_pid = m.group('pid')
m_msg = m.group('msg')
if(testrun.cgformat):
m_param3 = m.group('dur')
else:
m_param3 = 'traceevent'
if(m_time and m_pid and m_msg):
t = FTraceLine(m_time, m_msg, m_param3)
pid = int(m_pid)
else:
continue
# the line should be a call, return, or event
if(not t.fcall and not t.freturn and not t.fevent):
continue
# only parse the ftrace data during suspend/resume
if(not testrun.inthepipe):
# look for the suspend start marker
if(t.fevent):
if(t.name == 'SUSPEND START'):
testrun.inthepipe = True
data.setStart(t.time)
continue
# trace event processing
if(t.fevent):
if(t.name == 'RESUME COMPLETE'):
if(sysvals.postresumetime > 0):
phase = 'post_resume'
data.newPhase(phase, t.time, t.time, '#FF9966', -1)
else:
testrun.inthepipe = False
data.setEnd(t.time)
continue
if(phase == 'post_resume'):
data.setEnd(t.time)
if(t.type == 'suspend_resume'):
# suspend_resume trace events have two types, begin and end
if(re.match('(?P<name>.*) begin$', t.name)):
isbegin = True
elif(re.match('(?P<name>.*) end$', t.name)):
isbegin = False
else:
continue
m = re.match('(?P<name>.*)\[(?P<val>[0-9]*)\] .*', t.name)
if(m):
val = m.group('val')
if val == '0':
name = m.group('name')
else:
name = m.group('name')+'['+val+']'
else:
m = re.match('(?P<name>.*) .*', t.name)
name = m.group('name')
# ignore these events
if(re.match('acpi_suspend\[.*', t.name) or
re.match('suspend_enter\[.*', name)):
continue
# -- phase changes --
# suspend_prepare start
if(re.match('dpm_prepare\[.*', t.name)):
phase = 'suspend_prepare'
if(not isbegin):
data.dmesg[phase]['end'] = t.time
continue
# suspend start
elif(re.match('dpm_suspend\[.*', t.name)):
phase = 'suspend'
data.setPhase(phase, t.time, isbegin)
continue
# suspend_late start
elif(re.match('dpm_suspend_late\[.*', t.name)):
phase = 'suspend_late'
data.setPhase(phase, t.time, isbegin)
continue
# suspend_noirq start
elif(re.match('dpm_suspend_noirq\[.*', t.name)):
phase = 'suspend_noirq'
data.setPhase(phase, t.time, isbegin)
if(not isbegin):
phase = 'suspend_machine'
data.dmesg[phase]['start'] = t.time
continue
# suspend_machine/resume_machine
elif(re.match('machine_suspend\[.*', t.name)):
if(isbegin):
phase = 'suspend_machine'
data.dmesg[phase]['end'] = t.time
data.tSuspended = t.time
else:
if(sysvals.suspendmode in ['mem', 'disk']):
data.dmesg['suspend_machine']['end'] = t.time
data.tSuspended = t.time
phase = 'resume_machine'
data.dmesg[phase]['start'] = t.time
data.tResumed = t.time
data.tLow = data.tResumed - data.tSuspended
continue
# resume_noirq start
elif(re.match('dpm_resume_noirq\[.*', t.name)):
phase = 'resume_noirq'
data.setPhase(phase, t.time, isbegin)
if(isbegin):
data.dmesg['resume_machine']['end'] = t.time
continue
# resume_early start
elif(re.match('dpm_resume_early\[.*', t.name)):
phase = 'resume_early'
data.setPhase(phase, t.time, isbegin)
continue
# resume start
elif(re.match('dpm_resume\[.*', t.name)):
phase = 'resume'
data.setPhase(phase, t.time, isbegin)
continue
# resume complete start
elif(re.match('dpm_complete\[.*', t.name)):
phase = 'resume_complete'
if(isbegin):
data.dmesg[phase]['start'] = t.time
continue
# is this trace event outside of the devices calls
if(data.isTraceEventOutsideDeviceCalls(pid, t.time)):
# global events (outside device calls) are simply graphed
if(name not in testrun.ttemp):
testrun.ttemp[name] = []
if(isbegin):
# create a new list entry
testrun.ttemp[name].append(\
{'begin': t.time, 'end': t.time})
else:
if(len(testrun.ttemp[name]) > 0):
# if an antry exists, assume this is its end
testrun.ttemp[name][-1]['end'] = t.time
elif(phase == 'post_resume'):
# post resume events can just have ends
testrun.ttemp[name].append({
'begin': data.dmesg[phase]['start'],
'end': t.time})
else:
if(isbegin):
data.addIntraDevTraceEvent('', name, pid, t.time)
else:
data.capIntraDevTraceEvent('', name, pid, t.time)
# device callback start
elif(t.type == 'device_pm_callback_start'):
m = re.match('(?P<drv>.*) (?P<d>.*), parent: *(?P<p>.*), .*',\
t.name);
if(not m):
continue
drv = m.group('drv')
n = m.group('d')
p = m.group('p')
if(n and p):
data.newAction(phase, n, pid, p, t.time, -1, drv)
# device callback finish
elif(t.type == 'device_pm_callback_end'):
m = re.match('(?P<drv>.*) (?P<d>.*), err.*', t.name);
if(not m):
continue
n = m.group('d')
list = data.dmesg[phase]['list']
if(n in list):
dev = list[n]
dev['length'] = t.time - dev['start']
dev['end'] = t.time
# callgraph processing
elif sysvals.usecallgraph:
# this shouldn't happen, but JIC, ignore callgraph data post-res
if(phase == 'post_resume'):
continue
# create a callgraph object for the data
if(pid not in testrun.ftemp):
testrun.ftemp[pid] = []
testrun.ftemp[pid].append(FTraceCallGraph())
# when the call is finished, see which device matches it
cg = testrun.ftemp[pid][-1]
if(cg.addLine(t, m)):
testrun.ftemp[pid].append(FTraceCallGraph())
tf.close()
for test in testruns:
# add the traceevent data to the device hierarchy
if(sysvals.usetraceevents):
for name in test.ttemp:
for event in test.ttemp[name]:
begin = event['begin']
end = event['end']
# if event starts before timeline start, expand timeline
if(begin < test.data.start):
test.data.setStart(begin)
# if event ends after timeline end, expand the timeline
if(end > test.data.end):
test.data.setEnd(end)
test.data.newActionGlobal(name, begin, end)
# add the callgraph data to the device hierarchy
borderphase = {
'dpm_prepare': 'suspend_prepare',
'dpm_complete': 'resume_complete'
}
for pid in test.ftemp:
for cg in test.ftemp[pid]:
if len(cg.list) < 2:
continue
if(not cg.sanityCheck()):
id = 'task %s cpu %s' % (pid, m.group('cpu'))
vprint('Sanity check failed for '+\
id+', ignoring this callback')
continue
callstart = cg.start
callend = cg.end
if(cg.list[0].name in borderphase):
p = borderphase[cg.list[0].name]
list = test.data.dmesg[p]['list']
for devname in list:
dev = list[devname]
if(pid == dev['pid'] and
callstart <= dev['start'] and
callend >= dev['end']):
dev['ftrace'] = cg.slice(dev['start'], dev['end'])
continue
if(cg.list[0].name != 'dpm_run_callback'):
continue
for p in test.data.phases:
if(test.data.dmesg[p]['start'] <= callstart and
callstart <= test.data.dmesg[p]['end']):
list = test.data.dmesg[p]['list']
for devname in list:
dev = list[devname]
if(pid == dev['pid'] and
callstart <= dev['start'] and
callend >= dev['end']):
dev['ftrace'] = cg
break
# fill in any missing phases
for data in testdata:
lp = data.phases[0]
for p in data.phases:
if(data.dmesg[p]['start'] < 0 and data.dmesg[p]['end'] < 0):
print('WARNING: phase "%s" is missing!' % p)
if(data.dmesg[p]['start'] < 0):
data.dmesg[p]['start'] = data.dmesg[lp]['end']
if(p == 'resume_machine'):
data.tSuspended = data.dmesg[lp]['end']
data.tResumed = data.dmesg[lp]['end']
data.tLow = 0
if(data.dmesg[p]['end'] < 0):
data.dmesg[p]['end'] = data.dmesg[p]['start']
lp = p
if(len(sysvals.devicefilter) > 0):
data.deviceFilter(sysvals.devicefilter)
data.fixupInitcallsThatDidntReturn()
if(sysvals.verbose):
data.printDetails()
# add the time in between the tests as a new phase so we can see it
if(len(testdata) > 1):
t1e = testdata[0].getEnd()
t2s = testdata[-1].getStart()
testdata[-1].newPhaseWithSingleAction('user mode', \
'user mode', t1e, t2s, '#FF9966')
return testdata
# Function: loadKernelLog
# Description:
# [deprecated for kernel 3.15.0 or newer]
# load the dmesg file into memory and fix up any ordering issues
# The dmesg filename is taken from sysvals
# Output:
# An array of empty Data objects with only their dmesgtext attributes set
def loadKernelLog():
global sysvals
vprint('Analyzing the dmesg data...')
if(os.path.exists(sysvals.dmesgfile) == False):
doError('%s doesnt exist' % sysvals.dmesgfile, False)
# there can be multiple test runs in a single file delineated by stamps
testruns = []
data = 0
lf = open(sysvals.dmesgfile, 'r')
for line in lf:
line = line.replace('\r\n', '')
idx = line.find('[')
if idx > 1:
line = line[idx:]
m = re.match(sysvals.stampfmt, line)
if(m):
if(data):
testruns.append(data)
data = Data(len(testruns))
parseStamp(m, data)
continue
if(not data):
continue
m = re.match(sysvals.firmwarefmt, line)
if(m):
data.fwSuspend = int(m.group('s'))
data.fwResume = int(m.group('r'))
if(data.fwSuspend > 0 or data.fwResume > 0):
data.fwValid = True
continue
m = re.match('[ \t]*(\[ *)(?P<ktime>[0-9\.]*)(\]) (?P<msg>.*)', line)
if(m):
data.dmesgtext.append(line)
if(re.match('ACPI: resume from mwait', m.group('msg'))):
print('NOTE: This suspend appears to be freeze rather than'+\
' %s, it will be treated as such' % sysvals.suspendmode)
sysvals.suspendmode = 'freeze'
else:
vprint('ignoring dmesg line: %s' % line.replace('\n', ''))
testruns.append(data)
lf.close()
if(not data):
print('ERROR: analyze_suspend header missing from dmesg log')
sys.exit()
# fix lines with same timestamp/function with the call and return swapped
for data in testruns:
last = ''
for line in data.dmesgtext:
mc = re.match('.*(\[ *)(?P<t>[0-9\.]*)(\]) calling '+\
'(?P<f>.*)\+ @ .*, parent: .*', line)
mr = re.match('.*(\[ *)(?P<t>[0-9\.]*)(\]) call '+\
'(?P<f>.*)\+ returned .* after (?P<dt>.*) usecs', last)
if(mc and mr and (mc.group('t') == mr.group('t')) and
(mc.group('f') == mr.group('f'))):
i = data.dmesgtext.index(last)
j = data.dmesgtext.index(line)
data.dmesgtext[i] = line
data.dmesgtext[j] = last
last = line
return testruns
# Function: parseKernelLog
# Description:
# [deprecated for kernel 3.15.0 or newer]
# Analyse a dmesg log output file generated from this app during
# the execution phase. Create a set of device structures in memory
# for subsequent formatting in the html output file
# This call is only for legacy support on kernels where the ftrace
# data lacks the suspend_resume or device_pm_callbacks trace events.
# Arguments:
# data: an empty Data object (with dmesgtext) obtained from loadKernelLog
# Output:
# The filled Data object
def parseKernelLog(data):
global sysvals
phase = 'suspend_runtime'
if(data.fwValid):
vprint('Firmware Suspend = %u ns, Firmware Resume = %u ns' % \
(data.fwSuspend, data.fwResume))
# dmesg phase match table
dm = {
'suspend_prepare': 'PM: Syncing filesystems.*',
'suspend': 'PM: Entering [a-z]* sleep.*',
'suspend_late': 'PM: suspend of devices complete after.*',
'suspend_noirq': 'PM: late suspend of devices complete after.*',
'suspend_machine': 'PM: noirq suspend of devices complete after.*',
'resume_machine': 'ACPI: Low-level resume complete.*',
'resume_noirq': 'ACPI: Waking up from system sleep state.*',
'resume_early': 'PM: noirq resume of devices complete after.*',
'resume': 'PM: early resume of devices complete after.*',
'resume_complete': 'PM: resume of devices complete after.*',
'post_resume': '.*Restarting tasks \.\.\..*',
}
if(sysvals.suspendmode == 'standby'):
dm['resume_machine'] = 'PM: Restoring platform NVS memory'
elif(sysvals.suspendmode == 'disk'):
dm['suspend_late'] = 'PM: freeze of devices complete after.*'
dm['suspend_noirq'] = 'PM: late freeze of devices complete after.*'
dm['suspend_machine'] = 'PM: noirq freeze of devices complete after.*'
dm['resume_machine'] = 'PM: Restoring platform NVS memory'
dm['resume_early'] = 'PM: noirq restore of devices complete after.*'
dm['resume'] = 'PM: early restore of devices complete after.*'
dm['resume_complete'] = 'PM: restore of devices complete after.*'
elif(sysvals.suspendmode == 'freeze'):
dm['resume_machine'] = 'ACPI: resume from mwait'
# action table (expected events that occur and show up in dmesg)
at = {
'sync_filesystems': {
'smsg': 'PM: Syncing filesystems.*',
'emsg': 'PM: Preparing system for mem sleep.*' },
'freeze_user_processes': {
'smsg': 'Freezing user space processes .*',
'emsg': 'Freezing remaining freezable tasks.*' },
'freeze_tasks': {
'smsg': 'Freezing remaining freezable tasks.*',
'emsg': 'PM: Entering (?P<mode>[a-z,A-Z]*) sleep.*' },
'ACPI prepare': {
'smsg': 'ACPI: Preparing to enter system sleep state.*',
'emsg': 'PM: Saving platform NVS memory.*' },
'PM vns': {
'smsg': 'PM: Saving platform NVS memory.*',
'emsg': 'Disabling non-boot CPUs .*' },
}
t0 = -1.0
cpu_start = -1.0
prevktime = -1.0
actions = dict()
for line in data.dmesgtext:
# -- preprocessing --
# parse each dmesg line into the time and message
m = re.match('[ \t]*(\[ *)(?P<ktime>[0-9\.]*)(\]) (?P<msg>.*)', line)
if(m):
val = m.group('ktime')
try:
ktime = float(val)
except:
doWarning('INVALID DMESG LINE: '+\
line.replace('\n', ''), 'dmesg')
continue
msg = m.group('msg')
# initialize data start to first line time
if t0 < 0:
data.setStart(ktime)
t0 = ktime
else:
continue
# hack for determining resume_machine end for freeze
if(not sysvals.usetraceevents and sysvals.suspendmode == 'freeze' \
and phase == 'resume_machine' and \
re.match('calling (?P<f>.*)\+ @ .*, parent: .*', msg)):
data.dmesg['resume_machine']['end'] = ktime
phase = 'resume_noirq'
data.dmesg[phase]['start'] = ktime
# -- phase changes --
# suspend start
if(re.match(dm['suspend_prepare'], msg)):
phase = 'suspend_prepare'
data.dmesg[phase]['start'] = ktime
data.setStart(ktime)
# suspend start
elif(re.match(dm['suspend'], msg)):
data.dmesg['suspend_prepare']['end'] = ktime
phase = 'suspend'
data.dmesg[phase]['start'] = ktime
# suspend_late start
elif(re.match(dm['suspend_late'], msg)):
data.dmesg['suspend']['end'] = ktime
phase = 'suspend_late'
data.dmesg[phase]['start'] = ktime
# suspend_noirq start
elif(re.match(dm['suspend_noirq'], msg)):
data.dmesg['suspend_late']['end'] = ktime
phase = 'suspend_noirq'
data.dmesg[phase]['start'] = ktime
# suspend_machine start
elif(re.match(dm['suspend_machine'], msg)):
data.dmesg['suspend_noirq']['end'] = ktime
phase = 'suspend_machine'
data.dmesg[phase]['start'] = ktime
# resume_machine start
elif(re.match(dm['resume_machine'], msg)):
if(sysvals.suspendmode in ['freeze', 'standby']):
data.tSuspended = prevktime
data.dmesg['suspend_machine']['end'] = prevktime
else:
data.tSuspended = ktime
data.dmesg['suspend_machine']['end'] = ktime
phase = 'resume_machine'
data.tResumed = ktime
data.tLow = data.tResumed - data.tSuspended
data.dmesg[phase]['start'] = ktime
# resume_noirq start
elif(re.match(dm['resume_noirq'], msg)):
data.dmesg['resume_machine']['end'] = ktime
phase = 'resume_noirq'
data.dmesg[phase]['start'] = ktime
# resume_early start
elif(re.match(dm['resume_early'], msg)):
data.dmesg['resume_noirq']['end'] = ktime
phase = 'resume_early'
data.dmesg[phase]['start'] = ktime
# resume start
elif(re.match(dm['resume'], msg)):
data.dmesg['resume_early']['end'] = ktime
phase = 'resume'
data.dmesg[phase]['start'] = ktime
# resume complete start
elif(re.match(dm['resume_complete'], msg)):
data.dmesg['resume']['end'] = ktime
phase = 'resume_complete'
data.dmesg[phase]['start'] = ktime
# post resume start
elif(re.match(dm['post_resume'], msg)):
data.dmesg['resume_complete']['end'] = ktime
data.setEnd(ktime)
phase = 'post_resume'
break
# -- device callbacks --
if(phase in data.phases):
# device init call
if(re.match('calling (?P<f>.*)\+ @ .*, parent: .*', msg)):
sm = re.match('calling (?P<f>.*)\+ @ '+\
'(?P<n>.*), parent: (?P<p>.*)', msg);
f = sm.group('f')
n = sm.group('n')
p = sm.group('p')
if(f and n and p):
data.newAction(phase, f, int(n), p, ktime, -1, '')
# device init return
elif(re.match('call (?P<f>.*)\+ returned .* after '+\
'(?P<t>.*) usecs', msg)):
sm = re.match('call (?P<f>.*)\+ returned .* after '+\
'(?P<t>.*) usecs(?P<a>.*)', msg);
f = sm.group('f')
t = sm.group('t')
list = data.dmesg[phase]['list']
if(f in list):
dev = list[f]
dev['length'] = int(t)
dev['end'] = ktime
# -- non-devicecallback actions --
# if trace events are not available, these are better than nothing
if(not sysvals.usetraceevents):
# look for known actions
for a in at:
if(re.match(at[a]['smsg'], msg)):
if(a not in actions):
actions[a] = []
actions[a].append({'begin': ktime, 'end': ktime})
if(re.match(at[a]['emsg'], msg)):
actions[a][-1]['end'] = ktime
# now look for CPU on/off events
if(re.match('Disabling non-boot CPUs .*', msg)):
# start of first cpu suspend
cpu_start = ktime
elif(re.match('Enabling non-boot CPUs .*', msg)):
# start of first cpu resume
cpu_start = ktime
elif(re.match('smpboot: CPU (?P<cpu>[0-9]*) is now offline', msg)):
# end of a cpu suspend, start of the next
m = re.match('smpboot: CPU (?P<cpu>[0-9]*) is now offline', msg)
cpu = 'CPU'+m.group('cpu')
if(cpu not in actions):
actions[cpu] = []
actions[cpu].append({'begin': cpu_start, 'end': ktime})
cpu_start = ktime
elif(re.match('CPU(?P<cpu>[0-9]*) is up', msg)):
# end of a cpu resume, start of the next
m = re.match('CPU(?P<cpu>[0-9]*) is up', msg)
cpu = 'CPU'+m.group('cpu')
if(cpu not in actions):
actions[cpu] = []
actions[cpu].append({'begin': cpu_start, 'end': ktime})
cpu_start = ktime
prevktime = ktime
# fill in any missing phases
lp = data.phases[0]
for p in data.phases:
if(data.dmesg[p]['start'] < 0 and data.dmesg[p]['end'] < 0):
print('WARNING: phase "%s" is missing, something went wrong!' % p)
print(' In %s, this dmesg line denotes the start of %s:' % \
(sysvals.suspendmode, p))
print(' "%s"' % dm[p])
if(data.dmesg[p]['start'] < 0):
data.dmesg[p]['start'] = data.dmesg[lp]['end']
if(p == 'resume_machine'):
data.tSuspended = data.dmesg[lp]['end']
data.tResumed = data.dmesg[lp]['end']
data.tLow = 0
if(data.dmesg[p]['end'] < 0):
data.dmesg[p]['end'] = data.dmesg[p]['start']
lp = p
# fill in any actions we've found
for name in actions:
for event in actions[name]:
begin = event['begin']
end = event['end']
# if event starts before timeline start, expand timeline
if(begin < data.start):
data.setStart(begin)
# if event ends after timeline end, expand the timeline
if(end > data.end):
data.setEnd(end)
data.newActionGlobal(name, begin, end)
if(sysvals.verbose):
data.printDetails()
if(len(sysvals.devicefilter) > 0):
data.deviceFilter(sysvals.devicefilter)
data.fixupInitcallsThatDidntReturn()
return True
# Function: setTimelineRows
# Description:
# Organize the timeline entries into the smallest
# number of rows possible, with no entry overlapping
# Arguments:
# list: the list of devices/actions for a single phase
# sortedkeys: cronologically sorted key list to use
# Output:
# The total number of rows needed to display this phase of the timeline
def setTimelineRows(list, sortedkeys):
# clear all rows and set them to undefined
remaining = len(list)
rowdata = dict()
row = 0
for item in list:
list[item]['row'] = -1
# try to pack each row with as many ranges as possible
while(remaining > 0):
if(row not in rowdata):
rowdata[row] = []
for item in sortedkeys:
if(list[item]['row'] < 0):
s = list[item]['start']
e = list[item]['end']
valid = True
for ritem in rowdata[row]:
rs = ritem['start']
re = ritem['end']
if(not (((s <= rs) and (e <= rs)) or
((s >= re) and (e >= re)))):
valid = False
break
if(valid):
rowdata[row].append(list[item])
list[item]['row'] = row
remaining -= 1
row += 1
return row
# Function: createTimeScale
# Description:
# Create the timescale header for the html timeline
# Arguments:
# t0: start time (suspend begin)
# tMax: end time (resume end)
# tSuspend: time when suspend occurs, i.e. the zero time
# Output:
# The html code needed to display the time scale
def createTimeScale(t0, tMax, tSuspended):
timescale = '<div class="t" style="right:{0}%">{1}</div>\n'
output = '<div id="timescale">\n'
# set scale for timeline
tTotal = tMax - t0
tS = 0.1
if(tTotal <= 0):
return output
if(tTotal > 4):
tS = 1
if(tSuspended < 0):
for i in range(int(tTotal/tS)+1):
pos = '%0.3f' % (100 - ((float(i)*tS*100)/tTotal))
if(i > 0):
val = '%0.fms' % (float(i)*tS*1000)
else:
val = ''
output += timescale.format(pos, val)
else:
tSuspend = tSuspended - t0
divTotal = int(tTotal/tS) + 1
divSuspend = int(tSuspend/tS)
s0 = (tSuspend - tS*divSuspend)*100/tTotal
for i in range(divTotal):
pos = '%0.3f' % (100 - ((float(i)*tS*100)/tTotal) - s0)
if((i == 0) and (s0 < 3)):
val = ''
elif(i == divSuspend):
val = 'S/R'
else:
val = '%0.fms' % (float(i-divSuspend)*tS*1000)
output += timescale.format(pos, val)
output += '</div>\n'
return output
# Function: createHTMLSummarySimple
# Description:
# Create summary html file for a series of tests
# Arguments:
# testruns: array of Data objects from parseTraceLog
def createHTMLSummarySimple(testruns, htmlfile):
global sysvals
# print out the basic summary of all the tests
hf = open(htmlfile, 'w')
# write the html header first (html head, css code, up to body start)
html = '<!DOCTYPE html>\n<html>\n<head>\n\
<meta http-equiv="content-type" content="text/html; charset=UTF-8">\n\
<title>AnalyzeSuspend Summary</title>\n\
<style type=\'text/css\'>\n\
body {overflow-y: scroll;}\n\
.stamp {width: 100%;text-align:center;background-color:#495E09;line-height:30px;color:white;font: 25px Arial;}\n\
table {width:100%;border-collapse: collapse;}\n\
.summary {font: 22px Arial;border:1px solid;}\n\
th {border: 1px solid black;background-color:#A7C942;color:white;}\n\
td {text-align: center;}\n\
tr.alt td {background-color:#EAF2D3;}\n\
tr.avg td {background-color:#BDE34C;}\n\
a:link {color: #90B521;}\n\
a:visited {color: #495E09;}\n\
a:hover {color: #B1DF28;}\n\
a:active {color: #FFFFFF;}\n\
</style>\n</head>\n<body>\n'
# group test header
count = len(testruns)
headline_stamp = '<div class="stamp">{0} {1} {2} {3} ({4} tests)</div>\n'
html += headline_stamp.format(sysvals.stamp['host'],
sysvals.stamp['kernel'], sysvals.stamp['mode'],
sysvals.stamp['time'], count)
# check to see if all the tests have the same value
stampcolumns = False
for data in testruns:
if diffStamp(sysvals.stamp, data.stamp):
stampcolumns = True
break
th = '\t<th>{0}</th>\n'
td = '\t<td>{0}</td>\n'
tdlink = '\t<td><a href="{0}">Click Here</a></td>\n'
# table header
html += '<table class="summary">\n<tr>\n'
html += th.format("Test #")
if stampcolumns:
html += th.format("Hostname")
html += th.format("Kernel Version")
html += th.format("Suspend Mode")
html += th.format("Test Time")
html += th.format("Suspend Time")
html += th.format("Resume Time")
html += th.format("Detail")
html += '</tr>\n'
# test data, 1 row per test
sTimeAvg = 0.0
rTimeAvg = 0.0
num = 1
for data in testruns:
# data.end is the end of post_resume
resumeEnd = data.dmesg['resume_complete']['end']
if num % 2 == 1:
html += '<tr class="alt">\n'
else:
html += '<tr>\n'
# test num
html += td.format("test %d" % num)
num += 1
if stampcolumns:
# host name
val = "unknown"
if('host' in data.stamp):
val = data.stamp['host']
html += td.format(val)
# host kernel
val = "unknown"
if('kernel' in data.stamp):
val = data.stamp['kernel']
html += td.format(val)
# suspend mode
val = "unknown"
if('mode' in data.stamp):
val = data.stamp['mode']
html += td.format(val)
# test time
val = "unknown"
if('time' in data.stamp):
val = data.stamp['time']
html += td.format(val)
# suspend time
sTime = (data.tSuspended - data.start)*1000
sTimeAvg += sTime
html += td.format("%3.3f ms" % sTime)
# resume time
rTime = (resumeEnd - data.tResumed)*1000
rTimeAvg += rTime
html += td.format("%3.3f ms" % rTime)
# link to the output html
html += tdlink.format(data.outfile)
html += '</tr>\n'
# last line: test average
if(count > 0):
sTimeAvg /= count
rTimeAvg /= count
html += '<tr class="avg">\n'
html += td.format('Average') # name
if stampcolumns:
html += td.format('') # host
html += td.format('') # kernel
html += td.format('') # mode
html += td.format('') # time
html += td.format("%3.3f ms" % sTimeAvg) # suspend time
html += td.format("%3.3f ms" % rTimeAvg) # resume time
html += td.format('') # output link
html += '</tr>\n'
# flush the data to file
hf.write(html+'</table>\n')
hf.write('</body>\n</html>\n')
hf.close()
# Function: createHTML
# Description:
# Create the output html file from the resident test data
# Arguments:
# testruns: array of Data objects from parseKernelLog or parseTraceLog
# Output:
# True if the html file was created, false if it failed
def createHTML(testruns):
global sysvals
for data in testruns:
data.normalizeTime(testruns[-1].tSuspended)
x2changes = ['', 'absolute']
if len(testruns) > 1:
x2changes = ['1', 'relative']
# html function templates
headline_stamp = '<div class="stamp">{0} {1} {2} {3}</div>\n'
html_devlist1 = '<button id="devlist1" class="devlist" style="float:left;">Device Detail%s</button>' % x2changes[0]
html_zoombox = '<center><button id="zoomin">ZOOM IN</button><button id="zoomout">ZOOM OUT</button><button id="zoomdef">ZOOM 1:1</button></center>\n'
html_devlist2 = '<button id="devlist2" class="devlist" style="float:right;">Device Detail2</button>\n'
html_timeline = '<div id="dmesgzoombox" class="zoombox">\n<div id="{0}" class="timeline" style="height:{1}px">\n'
html_device = '<div id="{0}" title="{1}" class="thread" style="left:{2}%;top:{3}%;height:{4}%;width:{5}%;">{6}</div>\n'
html_traceevent = '<div title="{0}" class="traceevent" style="left:{1}%;top:{2}%;height:{3}%;width:{4}%;border:1px solid {5};background-color:{5}">{6}</div>\n'
html_phase = '<div class="phase" style="left:{0}%;width:{1}%;top:{2}%;height:{3}%;background-color:{4}">{5}</div>\n'
html_phaselet = '<div id="{0}" class="phaselet" style="left:{1}%;width:{2}%;background-color:{3}"></div>\n'
html_legend = '<div class="square" style="left:{0}%;background-color:{1}">&nbsp;{2}</div>\n'
html_timetotal = '<table class="time1">\n<tr>'\
'<td class="green">{2} Suspend Time: <b>{0} ms</b></td>'\
'<td class="yellow">{2} Resume Time: <b>{1} ms</b></td>'\
'</tr>\n</table>\n'
html_timetotal2 = '<table class="time1">\n<tr>'\
'<td class="green">{3} Suspend Time: <b>{0} ms</b></td>'\
'<td class="gray">'+sysvals.suspendmode+' time: <b>{1} ms</b></td>'\
'<td class="yellow">{3} Resume Time: <b>{2} ms</b></td>'\
'</tr>\n</table>\n'
html_timegroups = '<table class="time2">\n<tr>'\
'<td class="green">{4}Kernel Suspend: {0} ms</td>'\
'<td class="purple">{4}Firmware Suspend: {1} ms</td>'\
'<td class="purple">{4}Firmware Resume: {2} ms</td>'\
'<td class="yellow">{4}Kernel Resume: {3} ms</td>'\
'</tr>\n</table>\n'
# device timeline
vprint('Creating Device Timeline...')
devtl = Timeline()
# Generate the header for this timeline
textnum = ['First', 'Second']
for data in testruns:
tTotal = data.end - data.start
tEnd = data.dmesg['resume_complete']['end']
if(tTotal == 0):
print('ERROR: No timeline data')
sys.exit()
if(data.tLow > 0):
low_time = '%.0f'%(data.tLow*1000)
if data.fwValid:
suspend_time = '%.0f'%((data.tSuspended-data.start)*1000 + \
(data.fwSuspend/1000000.0))
resume_time = '%.0f'%((tEnd-data.tSuspended)*1000 + \
(data.fwResume/1000000.0))
testdesc1 = 'Total'
testdesc2 = ''
if(len(testruns) > 1):
testdesc1 = testdesc2 = textnum[data.testnumber]
testdesc2 += ' '
if(data.tLow == 0):
thtml = html_timetotal.format(suspend_time, \
resume_time, testdesc1)
else:
thtml = html_timetotal2.format(suspend_time, low_time, \
resume_time, testdesc1)
devtl.html['timeline'] += thtml
sktime = '%.3f'%((data.dmesg['suspend_machine']['end'] - \
data.getStart())*1000)
sftime = '%.3f'%(data.fwSuspend / 1000000.0)
rftime = '%.3f'%(data.fwResume / 1000000.0)
rktime = '%.3f'%((data.getEnd() - \
data.dmesg['resume_machine']['start'])*1000)
devtl.html['timeline'] += html_timegroups.format(sktime, \
sftime, rftime, rktime, testdesc2)
else:
suspend_time = '%.0f'%((data.tSuspended-data.start)*1000)
resume_time = '%.0f'%((tEnd-data.tSuspended)*1000)
testdesc = 'Kernel'
if(len(testruns) > 1):
testdesc = textnum[data.testnumber]+' '+testdesc
if(data.tLow == 0):
thtml = html_timetotal.format(suspend_time, \
resume_time, testdesc)
else:
thtml = html_timetotal2.format(suspend_time, low_time, \
resume_time, testdesc)
devtl.html['timeline'] += thtml
# time scale for potentially multiple datasets
t0 = testruns[0].start
tMax = testruns[-1].end
tSuspended = testruns[-1].tSuspended
tTotal = tMax - t0
# determine the maximum number of rows we need to draw
timelinerows = 0
for data in testruns:
for phase in data.dmesg:
list = data.dmesg[phase]['list']
rows = setTimelineRows(list, list)
data.dmesg[phase]['row'] = rows
if(rows > timelinerows):
timelinerows = rows
# calculate the timeline height and create bounding box, add buttons
devtl.setRows(timelinerows + 1)
devtl.html['timeline'] += html_devlist1
if len(testruns) > 1:
devtl.html['timeline'] += html_devlist2
devtl.html['timeline'] += html_zoombox
devtl.html['timeline'] += html_timeline.format('dmesg', devtl.height)
# draw the colored boxes for each of the phases
for data in testruns:
for b in data.dmesg:
phase = data.dmesg[b]
length = phase['end']-phase['start']
left = '%.3f' % (((phase['start']-t0)*100.0)/tTotal)
width = '%.3f' % ((length*100.0)/tTotal)
devtl.html['timeline'] += html_phase.format(left, width, \
'%.3f'%devtl.scaleH, '%.3f'%(100-devtl.scaleH), \
data.dmesg[b]['color'], '')
# draw the time scale, try to make the number of labels readable
devtl.html['scale'] = createTimeScale(t0, tMax, tSuspended)
devtl.html['timeline'] += devtl.html['scale']
for data in testruns:
for b in data.dmesg:
phaselist = data.dmesg[b]['list']
for d in phaselist:
name = d
drv = ''
dev = phaselist[d]
if(d in sysvals.altdevname):
name = sysvals.altdevname[d]
if('drv' in dev and dev['drv']):
drv = ' {%s}' % dev['drv']
height = (100.0 - devtl.scaleH)/data.dmesg[b]['row']
top = '%.3f' % ((dev['row']*height) + devtl.scaleH)
left = '%.3f' % (((dev['start']-t0)*100)/tTotal)
width = '%.3f' % (((dev['end']-dev['start'])*100)/tTotal)
length = ' (%0.3f ms) ' % ((dev['end']-dev['start'])*1000)
color = 'rgba(204,204,204,0.5)'
devtl.html['timeline'] += html_device.format(dev['id'], \
d+drv+length+b, left, top, '%.3f'%height, width, name+drv)
# draw any trace events found
for data in testruns:
for b in data.dmesg:
phaselist = data.dmesg[b]['list']
for name in phaselist:
dev = phaselist[name]
if('traceevents' in dev):
vprint('Debug trace events found for device %s' % name)
vprint('%20s %20s %10s %8s' % ('action', \
'name', 'time(ms)', 'length(ms)'))
for e in dev['traceevents']:
vprint('%20s %20s %10.3f %8.3f' % (e.action, \
e.name, e.time*1000, e.length*1000))
height = (100.0 - devtl.scaleH)/data.dmesg[b]['row']
top = '%.3f' % ((dev['row']*height) + devtl.scaleH)
left = '%.3f' % (((e.time-t0)*100)/tTotal)
width = '%.3f' % (e.length*100/tTotal)
color = 'rgba(204,204,204,0.5)'
devtl.html['timeline'] += \
html_traceevent.format(e.action+' '+e.name, \
left, top, '%.3f'%height, \
width, e.color, '')
# timeline is finished
devtl.html['timeline'] += '</div>\n</div>\n'
# draw a legend which describes the phases by color
data = testruns[-1]
devtl.html['legend'] = '<div class="legend">\n'
pdelta = 100.0/len(data.phases)
pmargin = pdelta / 4.0
for phase in data.phases:
order = '%.2f' % ((data.dmesg[phase]['order'] * pdelta) + pmargin)
name = string.replace(phase, '_', ' &nbsp;')
devtl.html['legend'] += html_legend.format(order, \
data.dmesg[phase]['color'], name)
devtl.html['legend'] += '</div>\n'
hf = open(sysvals.htmlfile, 'w')
thread_height = 0
# write the html header first (html head, css code, up to body start)
html_header = '<!DOCTYPE html>\n<html>\n<head>\n\
<meta http-equiv="content-type" content="text/html; charset=UTF-8">\n\
<title>AnalyzeSuspend</title>\n\
<style type=\'text/css\'>\n\
body {overflow-y: scroll;}\n\
.stamp {width: 100%;text-align:center;background-color:gray;line-height:30px;color:white;font: 25px Arial;}\n\
.callgraph {margin-top: 30px;box-shadow: 5px 5px 20px black;}\n\
.callgraph article * {padding-left: 28px;}\n\
h1 {color:black;font: bold 30px Times;}\n\
t0 {color:black;font: bold 30px Times;}\n\
t1 {color:black;font: 30px Times;}\n\
t2 {color:black;font: 25px Times;}\n\
t3 {color:black;font: 20px Times;white-space:nowrap;}\n\
t4 {color:black;font: bold 30px Times;line-height:60px;white-space:nowrap;}\n\
table {width:100%;}\n\
.gray {background-color:rgba(80,80,80,0.1);}\n\
.green {background-color:rgba(204,255,204,0.4);}\n\
.purple {background-color:rgba(128,0,128,0.2);}\n\
.yellow {background-color:rgba(255,255,204,0.4);}\n\
.time1 {font: 22px Arial;border:1px solid;}\n\
.time2 {font: 15px Arial;border-bottom:1px solid;border-left:1px solid;border-right:1px solid;}\n\
td {text-align: center;}\n\
r {color:#500000;font:15px Tahoma;}\n\
n {color:#505050;font:15px Tahoma;}\n\
.tdhl {color: red;}\n\
.hide {display: none;}\n\
.pf {display: none;}\n\
.pf:checked + label {background: url(\'data:image/svg+xml;utf,<?xml version="1.0" standalone="no"?><svg xmlns="http://www.w3.org/2000/svg" height="18" width="18" version="1.1"><circle cx="9" cy="9" r="8" stroke="black" stroke-width="1" fill="white"/><rect x="4" y="8" width="10" height="2" style="fill:black;stroke-width:0"/><rect x="8" y="4" width="2" height="10" style="fill:black;stroke-width:0"/></svg>\') no-repeat left center;}\n\
.pf:not(:checked) ~ label {background: url(\'data:image/svg+xml;utf,<?xml version="1.0" standalone="no"?><svg xmlns="http://www.w3.org/2000/svg" height="18" width="18" version="1.1"><circle cx="9" cy="9" r="8" stroke="black" stroke-width="1" fill="white"/><rect x="4" y="8" width="10" height="2" style="fill:black;stroke-width:0"/></svg>\') no-repeat left center;}\n\
.pf:checked ~ *:not(:nth-child(2)) {display: none;}\n\
.zoombox {position: relative; width: 100%; overflow-x: scroll;}\n\
.timeline {position: relative; font-size: 14px;cursor: pointer;width: 100%; overflow: hidden; background-color:#dddddd;}\n\
.thread {position: absolute; height: '+'%.3f'%thread_height+'%; overflow: hidden; line-height: 30px; border:1px solid;text-align:center;white-space:nowrap;background-color:rgba(204,204,204,0.5);}\n\
.thread:hover {background-color:white;border:1px solid red;z-index:10;}\n\
.hover {background-color:white;border:1px solid red;z-index:10;}\n\
.traceevent {position: absolute;opacity: 0.3;height: '+'%.3f'%thread_height+'%;width:0;overflow:hidden;line-height:30px;text-align:center;white-space:nowrap;}\n\
.phase {position: absolute;overflow: hidden;border:0px;text-align:center;}\n\
.phaselet {position:absolute;overflow:hidden;border:0px;text-align:center;height:100px;font-size:24px;}\n\
.t {position:absolute;top:0%;height:100%;border-right:1px solid black;}\n\
.legend {position: relative; width: 100%; height: 40px; text-align: center;margin-bottom:20px}\n\
.legend .square {position:absolute;top:10px; width: 0px;height: 20px;border:1px solid;padding-left:20px;}\n\
button {height:40px;width:200px;margin-bottom:20px;margin-top:20px;font-size:24px;}\n\
.devlist {position:'+x2changes[1]+';width:190px;}\n\
#devicedetail {height:100px;box-shadow: 5px 5px 20px black;}\n\
</style>\n</head>\n<body>\n'
hf.write(html_header)
# write the test title and general info header
if(sysvals.stamp['time'] != ""):
hf.write(headline_stamp.format(sysvals.stamp['host'],
sysvals.stamp['kernel'], sysvals.stamp['mode'], \
sysvals.stamp['time']))
# write the device timeline
hf.write(devtl.html['timeline'])
hf.write(devtl.html['legend'])
hf.write('<div id="devicedetailtitle"></div>\n')
hf.write('<div id="devicedetail" style="display:none;">\n')
# draw the colored boxes for the device detail section
for data in testruns:
hf.write('<div id="devicedetail%d">\n' % data.testnumber)
for b in data.phases:
phase = data.dmesg[b]
length = phase['end']-phase['start']
left = '%.3f' % (((phase['start']-t0)*100.0)/tTotal)
width = '%.3f' % ((length*100.0)/tTotal)
hf.write(html_phaselet.format(b, left, width, \
data.dmesg[b]['color']))
hf.write('</div>\n')
hf.write('</div>\n')
# write the ftrace data (callgraph)
data = testruns[-1]
if(sysvals.usecallgraph):
hf.write('<section id="callgraphs" class="callgraph">\n')
# write out the ftrace data converted to html
html_func_top = '<article id="{0}" class="atop" style="background-color:{1}">\n<input type="checkbox" class="pf" id="f{2}" checked/><label for="f{2}">{3} {4}</label>\n'
html_func_start = '<article>\n<input type="checkbox" class="pf" id="f{0}" checked/><label for="f{0}">{1} {2}</label>\n'
html_func_end = '</article>\n'
html_func_leaf = '<article>{0} {1}</article>\n'
num = 0
for p in data.phases:
list = data.dmesg[p]['list']
for devname in data.sortedDevices(p):
if('ftrace' not in list[devname]):
continue
name = devname
if(devname in sysvals.altdevname):
name = sysvals.altdevname[devname]
devid = list[devname]['id']
cg = list[devname]['ftrace']
flen = '<r>(%.3f ms @ %.3f to %.3f)</r>' % \
((cg.end - cg.start)*1000, cg.start*1000, cg.end*1000)
hf.write(html_func_top.format(devid, data.dmesg[p]['color'], \
num, name+' '+p, flen))
num += 1
for line in cg.list:
if(line.length < 0.000000001):
flen = ''
else:
flen = '<n>(%.3f ms @ %.3f)</n>' % (line.length*1000, \
line.time*1000)
if(line.freturn and line.fcall):
hf.write(html_func_leaf.format(line.name, flen))
elif(line.freturn):
hf.write(html_func_end)
else:
hf.write(html_func_start.format(num, line.name, flen))
num += 1
hf.write(html_func_end)
hf.write('\n\n </section>\n')
# write the footer and close
addScriptCode(hf, testruns)
hf.write('</body>\n</html>\n')
hf.close()
return True
# Function: addScriptCode
# Description:
# Adds the javascript code to the output html
# Arguments:
# hf: the open html file pointer
# testruns: array of Data objects from parseKernelLog or parseTraceLog
def addScriptCode(hf, testruns):
t0 = (testruns[0].start - testruns[-1].tSuspended) * 1000
tMax = (testruns[-1].end - testruns[-1].tSuspended) * 1000
# create an array in javascript memory with the device details
detail = ' var devtable = [];\n'
for data in testruns:
topo = data.deviceTopology()
detail += ' devtable[%d] = "%s";\n' % (data.testnumber, topo)
detail += ' var bounds = [%f,%f];\n' % (t0, tMax)
# add the code which will manipulate the data in the browser
script_code = \
'<script type="text/javascript">\n'+detail+\
' function zoomTimeline() {\n'\
' var timescale = document.getElementById("timescale");\n'\
' var dmesg = document.getElementById("dmesg");\n'\
' var zoombox = document.getElementById("dmesgzoombox");\n'\
' var val = parseFloat(dmesg.style.width);\n'\
' var newval = 100;\n'\
' var sh = window.outerWidth / 2;\n'\
' if(this.id == "zoomin") {\n'\
' newval = val * 1.2;\n'\
' if(newval > 40000) newval = 40000;\n'\
' dmesg.style.width = newval+"%";\n'\
' zoombox.scrollLeft = ((zoombox.scrollLeft + sh) * newval / val) - sh;\n'\
' } else if (this.id == "zoomout") {\n'\
' newval = val / 1.2;\n'\
' if(newval < 100) newval = 100;\n'\
' dmesg.style.width = newval+"%";\n'\
' zoombox.scrollLeft = ((zoombox.scrollLeft + sh) * newval / val) - sh;\n'\
' } else {\n'\
' zoombox.scrollLeft = 0;\n'\
' dmesg.style.width = "100%";\n'\
' }\n'\
' var html = "";\n'\
' var t0 = bounds[0];\n'\
' var tMax = bounds[1];\n'\
' var tTotal = tMax - t0;\n'\
' var wTotal = tTotal * 100.0 / newval;\n'\
' for(var tS = 1000; (wTotal / tS) < 3; tS /= 10);\n'\
' if(tS < 1) tS = 1;\n'\
' for(var s = ((t0 / tS)|0) * tS; s < tMax; s += tS) {\n'\
' var pos = (tMax - s) * 100.0 / tTotal;\n'\
' var name = (s == 0)?"S/R":(s+"ms");\n'\
' html += "<div class=\\"t\\" style=\\"right:"+pos+"%\\">"+name+"</div>";\n'\
' }\n'\
' timescale.innerHTML = html;\n'\
' }\n'\
' function deviceHover() {\n'\
' var name = this.title.slice(0, this.title.indexOf(" ("));\n'\
' var dmesg = document.getElementById("dmesg");\n'\
' var dev = dmesg.getElementsByClassName("thread");\n'\
' var cpu = -1;\n'\
' if(name.match("CPU_ON\[[0-9]*\]"))\n'\
' cpu = parseInt(name.slice(7));\n'\
' else if(name.match("CPU_OFF\[[0-9]*\]"))\n'\
' cpu = parseInt(name.slice(8));\n'\
' for (var i = 0; i < dev.length; i++) {\n'\
' dname = dev[i].title.slice(0, dev[i].title.indexOf(" ("));\n'\
' if((cpu >= 0 && dname.match("CPU_O[NF]*\\\[*"+cpu+"\\\]")) ||\n'\
' (name == dname))\n'\
' {\n'\
' dev[i].className = "thread hover";\n'\
' } else {\n'\
' dev[i].className = "thread";\n'\
' }\n'\
' }\n'\
' }\n'\
' function deviceUnhover() {\n'\
' var dmesg = document.getElementById("dmesg");\n'\
' var dev = dmesg.getElementsByClassName("thread");\n'\
' for (var i = 0; i < dev.length; i++) {\n'\
' dev[i].className = "thread";\n'\
' }\n'\
' }\n'\
' function deviceTitle(title, total, cpu) {\n'\
' var prefix = "Total";\n'\
' if(total.length > 3) {\n'\
' prefix = "Average";\n'\
' total[1] = (total[1]+total[3])/2;\n'\
' total[2] = (total[2]+total[4])/2;\n'\
' }\n'\
' var devtitle = document.getElementById("devicedetailtitle");\n'\
' var name = title.slice(0, title.indexOf(" "));\n'\
' if(cpu >= 0) name = "CPU"+cpu;\n'\
' var driver = "";\n'\
' var tS = "<t2>(</t2>";\n'\
' var tR = "<t2>)</t2>";\n'\
' if(total[1] > 0)\n'\
' tS = "<t2>("+prefix+" Suspend:</t2><t0> "+total[1].toFixed(3)+" ms</t0> ";\n'\
' if(total[2] > 0)\n'\
' tR = " <t2>"+prefix+" Resume:</t2><t0> "+total[2].toFixed(3)+" ms<t2>)</t2></t0>";\n'\
' var s = title.indexOf("{");\n'\
' var e = title.indexOf("}");\n'\
' if((s >= 0) && (e >= 0))\n'\
' driver = title.slice(s+1, e) + " <t1>@</t1> ";\n'\
' if(total[1] > 0 && total[2] > 0)\n'\
' devtitle.innerHTML = "<t0>"+driver+name+"</t0> "+tS+tR;\n'\
' else\n'\
' devtitle.innerHTML = "<t0>"+title+"</t0>";\n'\
' return name;\n'\
' }\n'\
' function deviceDetail() {\n'\
' var devinfo = document.getElementById("devicedetail");\n'\
' devinfo.style.display = "block";\n'\
' var name = this.title.slice(0, this.title.indexOf(" ("));\n'\
' var cpu = -1;\n'\
' if(name.match("CPU_ON\[[0-9]*\]"))\n'\
' cpu = parseInt(name.slice(7));\n'\
' else if(name.match("CPU_OFF\[[0-9]*\]"))\n'\
' cpu = parseInt(name.slice(8));\n'\
' var dmesg = document.getElementById("dmesg");\n'\
' var dev = dmesg.getElementsByClassName("thread");\n'\
' var idlist = [];\n'\
' var pdata = [[]];\n'\
' var pd = pdata[0];\n'\
' var total = [0.0, 0.0, 0.0];\n'\
' for (var i = 0; i < dev.length; i++) {\n'\
' dname = dev[i].title.slice(0, dev[i].title.indexOf(" ("));\n'\
' if((cpu >= 0 && dname.match("CPU_O[NF]*\\\[*"+cpu+"\\\]")) ||\n'\
' (name == dname))\n'\
' {\n'\
' idlist[idlist.length] = dev[i].id;\n'\
' var tidx = 1;\n'\
' if(dev[i].id[0] == "a") {\n'\
' pd = pdata[0];\n'\
' } else {\n'\
' if(pdata.length == 1) pdata[1] = [];\n'\
' if(total.length == 3) total[3]=total[4]=0.0;\n'\
' pd = pdata[1];\n'\
' tidx = 3;\n'\
' }\n'\
' var info = dev[i].title.split(" ");\n'\
' var pname = info[info.length-1];\n'\
' pd[pname] = parseFloat(info[info.length-3].slice(1));\n'\
' total[0] += pd[pname];\n'\
' if(pname.indexOf("suspend") >= 0)\n'\
' total[tidx] += pd[pname];\n'\
' else\n'\
' total[tidx+1] += pd[pname];\n'\
' }\n'\
' }\n'\
' var devname = deviceTitle(this.title, total, cpu);\n'\
' var left = 0.0;\n'\
' for (var t = 0; t < pdata.length; t++) {\n'\
' pd = pdata[t];\n'\
' devinfo = document.getElementById("devicedetail"+t);\n'\
' var phases = devinfo.getElementsByClassName("phaselet");\n'\
' for (var i = 0; i < phases.length; i++) {\n'\
' if(phases[i].id in pd) {\n'\
' var w = 100.0*pd[phases[i].id]/total[0];\n'\
' var fs = 32;\n'\
' if(w < 8) fs = 4*w | 0;\n'\
' var fs2 = fs*3/4;\n'\
' phases[i].style.width = w+"%";\n'\
' phases[i].style.left = left+"%";\n'\
' phases[i].title = phases[i].id+" "+pd[phases[i].id]+" ms";\n'\
' left += w;\n'\
' var time = "<t4 style=\\"font-size:"+fs+"px\\">"+pd[phases[i].id]+" ms<br></t4>";\n'\
' var pname = "<t3 style=\\"font-size:"+fs2+"px\\">"+phases[i].id.replace("_", " ")+"</t3>";\n'\
' phases[i].innerHTML = time+pname;\n'\
' } else {\n'\
' phases[i].style.width = "0%";\n'\
' phases[i].style.left = left+"%";\n'\
' }\n'\
' }\n'\
' }\n'\
' var cglist = document.getElementById("callgraphs");\n'\
' if(!cglist) return;\n'\
' var cg = cglist.getElementsByClassName("atop");\n'\
' for (var i = 0; i < cg.length; i++) {\n'\
' if(idlist.indexOf(cg[i].id) >= 0) {\n'\
' cg[i].style.display = "block";\n'\
' } else {\n'\
' cg[i].style.display = "none";\n'\
' }\n'\
' }\n'\
' }\n'\
' function devListWindow(e) {\n'\
' var sx = e.clientX;\n'\
' if(sx > window.innerWidth - 440)\n'\
' sx = window.innerWidth - 440;\n'\
' var cfg="top="+e.screenY+", left="+sx+", width=440, height=720, scrollbars=yes";\n'\
' var win = window.open("", "_blank", cfg);\n'\
' if(window.chrome) win.moveBy(sx, 0);\n'\
' var html = "<title>"+e.target.innerHTML+"</title>"+\n'\
' "<style type=\\"text/css\\">"+\n'\
' " ul {list-style-type:circle;padding-left:10px;margin-left:10px;}"+\n'\
' "</style>"\n'\
' var dt = devtable[0];\n'\
' if(e.target.id != "devlist1")\n'\
' dt = devtable[1];\n'\
' win.document.write(html+dt);\n'\
' }\n'\
' window.addEventListener("load", function () {\n'\
' var dmesg = document.getElementById("dmesg");\n'\
' dmesg.style.width = "100%"\n'\
' document.getElementById("zoomin").onclick = zoomTimeline;\n'\
' document.getElementById("zoomout").onclick = zoomTimeline;\n'\
' document.getElementById("zoomdef").onclick = zoomTimeline;\n'\
' var devlist = document.getElementsByClassName("devlist");\n'\
' for (var i = 0; i < devlist.length; i++)\n'\
' devlist[i].onclick = devListWindow;\n'\
' var dev = dmesg.getElementsByClassName("thread");\n'\
' for (var i = 0; i < dev.length; i++) {\n'\
' dev[i].onclick = deviceDetail;\n'\
' dev[i].onmouseover = deviceHover;\n'\
' dev[i].onmouseout = deviceUnhover;\n'\
' }\n'\
' zoomTimeline();\n'\
' });\n'\
'</script>\n'
hf.write(script_code);
# Function: executeSuspend
# Description:
# Execute system suspend through the sysfs interface, then copy the output
# dmesg and ftrace files to the test output directory.
def executeSuspend():
global sysvals
detectUSB(False)
t0 = time.time()*1000
tp = sysvals.tpath
# execute however many s/r runs requested
for count in range(1,sysvals.execcount+1):
# clear the kernel ring buffer just as we start
os.system('dmesg -C')
# enable callgraph ftrace only for the second run
if(sysvals.usecallgraph and count == 2):
# set trace type
os.system('echo function_graph > '+tp+'current_tracer')
os.system('echo "" > '+tp+'set_ftrace_filter')
# set trace format options
os.system('echo funcgraph-abstime > '+tp+'trace_options')
os.system('echo funcgraph-proc > '+tp+'trace_options')
# focus only on device suspend and resume
os.system('cat '+tp+'available_filter_functions | '+\
'grep dpm_run_callback > '+tp+'set_graph_function')
# if this is test2 and there's a delay, start here
if(count > 1 and sysvals.x2delay > 0):
tN = time.time()*1000
while (tN - t0) < sysvals.x2delay:
tN = time.time()*1000
time.sleep(0.001)
# start ftrace
if(sysvals.usecallgraph or sysvals.usetraceevents):
print('START TRACING')
os.system('echo 1 > '+tp+'tracing_on')
# initiate suspend
if(sysvals.usecallgraph or sysvals.usetraceevents):