| # SPDX-License-Identifier: GPL-2.0 |
| if BLOCK |
| |
| 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" |
| 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 |
| |
| endif |
