| # SPDX-License-Identifier: GPL-2.0 | |
| menu "IO Schedulers" | |
| config MQ_IOSCHED_DEADLINE | |
| tristate "MQ deadline I/O scheduler" | |
| default y | |
| help | |
| MQ version of the deadline IO scheduler. | |
| config MQ_IOSCHED_KYBER | |
| tristate "Kyber I/O scheduler" | |
| default y | |
| help | |
| The Kyber I/O scheduler is a low-overhead scheduler suitable for | |
| multiqueue and other fast devices. Given target latencies for reads and | |
| synchronous writes, it will self-tune queue depths to achieve that | |
| goal. | |
| config IOSCHED_BFQ | |
| tristate "BFQ I/O scheduler" | |
| select BLK_ICQ | |
| help | |
| BFQ I/O scheduler for BLK-MQ. BFQ distributes the bandwidth of | |
| of the device among all processes according to their weights, | |
| regardless of the device parameters and with any workload. It | |
| also guarantees a low latency to interactive and soft | |
| real-time applications. Details in | |
| Documentation/block/bfq-iosched.rst | |
| config BFQ_GROUP_IOSCHED | |
| bool "BFQ hierarchical scheduling support" | |
| depends on IOSCHED_BFQ && BLK_CGROUP | |
| select BLK_CGROUP_RWSTAT | |
| help | |
| Enable hierarchical scheduling in BFQ, using the blkio | |
| (cgroups-v1) or io (cgroups-v2) controller. | |
| config BFQ_CGROUP_DEBUG | |
| bool "BFQ IO controller debugging" | |
| depends on BFQ_GROUP_IOSCHED | |
| help | |
| Enable some debugging help. Currently it exports additional stat | |
| files in a cgroup which can be useful for debugging. | |
| endmenu |