LXR linux/block/Kconfig.iosched

   1# SPDX-License-Identifier: GPL-2.0
   2if BLOCK
   3
   4menu "IO Schedulers"
   5
   6config MQ_IOSCHED_DEADLINE
   7        tristate "MQ deadline I/O scheduler"
   8        default y
   9        help
  10          MQ version of the deadline IO scheduler.
  11
  12config MQ_IOSCHED_KYBER
  13        tristate "Kyber I/O scheduler"
  14        default y
  15        help
  16          The Kyber I/O scheduler is a low-overhead scheduler suitable for
  17          multiqueue and other fast devices. Given target latencies for reads and
  18          synchronous writes, it will self-tune queue depths to achieve that
  19          goal.
  20
  21config IOSCHED_BFQ
  22        tristate "BFQ I/O scheduler"
  23        help
  24        BFQ I/O scheduler for BLK-MQ. BFQ distributes the bandwidth of
  25        of the device among all processes according to their weights,
  26        regardless of the device parameters and with any workload. It
  27        also guarantees a low latency to interactive and soft
  28        real-time applications.  Details in
  29        Documentation/block/bfq-iosched.rst
  30
  31config BFQ_GROUP_IOSCHED
  32       bool "BFQ hierarchical scheduling support"
  33       depends on IOSCHED_BFQ && BLK_CGROUP
  34       select BLK_CGROUP_RWSTAT
  35        help
  36
  37       Enable hierarchical scheduling in BFQ, using the blkio
  38       (cgroups-v1) or io (cgroups-v2) controller.
  39
  40config BFQ_CGROUP_DEBUG
  41        bool "BFQ IO controller debugging"
  42        depends on BFQ_GROUP_IOSCHED
  43        help
  44        Enable some debugging help. Currently it exports additional stat
  45        files in a cgroup which can be useful for debugging.
  46
  47endmenu
  48
  49endif
  50