diff options
Diffstat (limited to 'block/Kconfig.iosched')
| -rw-r--r-- | block/Kconfig.iosched | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/block/Kconfig.iosched b/block/Kconfig.iosched index 58fc8684788d..99a42261677a 100644 --- a/block/Kconfig.iosched +++ b/block/Kconfig.iosched @@ -39,6 +39,25 @@ config CFQ_GROUP_IOSCHED ---help--- Enable group IO scheduling in CFQ. +config IOSCHED_BFQ + tristate "BFQ I/O scheduler" + default n + ---help--- + The BFQ I/O scheduler distributes bandwidth 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.txt + +config BFQ_GROUP_IOSCHED + bool "BFQ hierarchical scheduling support" + depends on IOSCHED_BFQ && BLK_CGROUP + default n + ---help--- + + Enable hierarchical scheduling in BFQ, using the blkio + (cgroups-v1) or io (cgroups-v2) controller. + choice prompt "Default I/O scheduler" default DEFAULT_CFQ @@ -52,6 +71,16 @@ choice config DEFAULT_CFQ bool "CFQ" if IOSCHED_CFQ=y + config DEFAULT_BFQ + bool "BFQ" if IOSCHED_BFQ=y + help + Selects BFQ as the default I/O scheduler which will be + used by default for all block devices. + The BFQ I/O scheduler aims at distributing the bandwidth + as desired, independently of the disk parameters and with + any workload. It also tries to guarantee low latency to + interactive and soft real-time applications. + config DEFAULT_NOOP bool "No-op" @@ -61,6 +90,7 @@ config DEFAULT_IOSCHED string default "deadline" if DEFAULT_DEADLINE default "cfq" if DEFAULT_CFQ + default "bfq" if DEFAULT_BFQ default "noop" if DEFAULT_NOOP config MQ_IOSCHED_DEADLINE |