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b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | menu "IO Schedulers" |
3 | ||
d3484991 JA |
4 | config MQ_IOSCHED_DEADLINE |
5 | tristate "MQ deadline I/O scheduler" | |
6 | default y | |
a7f7f624 | 7 | help |
d3484991 JA |
8 | MQ version of the deadline IO scheduler. |
9 | ||
00e04393 OS |
10 | config MQ_IOSCHED_KYBER |
11 | tristate "Kyber I/O scheduler" | |
12 | default y | |
a7f7f624 | 13 | help |
00e04393 OS |
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 | |
17 | goal. | |
18 | ||
aee69d78 PV |
19 | config IOSCHED_BFQ |
20 | tristate "BFQ I/O scheduler" | |
a7f7f624 | 21 | help |
aee69d78 PV |
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 | |
898bd37a | 27 | Documentation/block/bfq-iosched.rst |
aee69d78 | 28 | |
e21b7a0b AA |
29 | config BFQ_GROUP_IOSCHED |
30 | bool "BFQ hierarchical scheduling support" | |
31 | depends on IOSCHED_BFQ && BLK_CGROUP | |
1d156646 | 32 | select BLK_CGROUP_RWSTAT |
a7f7f624 | 33 | help |
e21b7a0b AA |
34 | |
35 | Enable hierarchical scheduling in BFQ, using the blkio | |
36 | (cgroups-v1) or io (cgroups-v2) controller. | |
37 | ||
8060c47b CH |
38 | config BFQ_CGROUP_DEBUG |
39 | bool "BFQ IO controller debugging" | |
40 | depends on BFQ_GROUP_IOSCHED | |
a7f7f624 | 41 | help |
8060c47b CH |
42 | Enable some debugging help. Currently it exports additional stat |
43 | files in a cgroup which can be useful for debugging. | |
44 | ||
1da177e4 | 45 | endmenu |