1 # SPDX-License-Identifier: GPL-2.0
4 config MQ_IOSCHED_DEADLINE
5 tristate "MQ deadline I/O scheduler"
8 MQ version of the deadline IO scheduler.
10 config MQ_IOSCHED_KYBER
11 tristate "Kyber I/O scheduler"
14 The Kyber I/O scheduler is a low-overhead scheduler suitable for
15 multiqueue and other fast devices. Given target latencies for reads and
16 synchronous writes, it will self-tune queue depths to achieve that
20 tristate "BFQ I/O scheduler"
22 BFQ I/O scheduler for BLK-MQ. BFQ distributes the bandwidth of
23 of the device among all processes according to their weights,
24 regardless of the device parameters and with any workload. It
25 also guarantees a low latency to interactive and soft
26 real-time applications. Details in
27 Documentation/block/bfq-iosched.rst
29 config BFQ_GROUP_IOSCHED
30 bool "BFQ hierarchical scheduling support"
31 depends on IOSCHED_BFQ && BLK_CGROUP
32 select BLK_CGROUP_RWSTAT
35 Enable hierarchical scheduling in BFQ, using the blkio
36 (cgroups-v1) or io (cgroups-v2) controller.
38 config BFQ_CGROUP_DEBUG
39 bool "BFQ IO controller debugging"
40 depends on BFQ_GROUP_IOSCHED
42 Enable some debugging help. Currently it exports additional stat
43 files in a cgroup which can be useful for debugging.