LXR linux/block/Kconfig.iosched

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