[linux-2.6-block.git] / block / Kconfig.iosched

# SPDX-License-Identifier: GPL-2.0
if BLOCK

menu "IO Schedulers"

config MQ_IOSCHED_DEADLINE
	tristate "MQ deadline I/O scheduler"
	default y
	help
	  MQ version of the deadline IO scheduler.

config MQ_IOSCHED_DEADLINE_CGROUP
       tristate
       default y
       depends on MQ_IOSCHED_DEADLINE
       depends on BLK_CGROUP

config MQ_IOSCHED_KYBER
	tristate "Kyber I/O scheduler"
	default y
	help
	  The Kyber I/O scheduler is a low-overhead scheduler suitable for
	  multiqueue and other fast devices. Given target latencies for reads and
	  synchronous writes, it will self-tune queue depths to achieve that
	  goal.

config IOSCHED_BFQ
	tristate "BFQ I/O scheduler"
	help
	BFQ I/O scheduler for BLK-MQ. BFQ distributes the bandwidth of
	of the device 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.rst

config BFQ_GROUP_IOSCHED
       bool "BFQ hierarchical scheduling support"
       depends on IOSCHED_BFQ && BLK_CGROUP
       select BLK_CGROUP_RWSTAT
	help

       Enable hierarchical scheduling in BFQ, using the blkio
       (cgroups-v1) or io (cgroups-v2) controller.

config BFQ_CGROUP_DEBUG
	bool "BFQ IO controller debugging"
	depends on BFQ_GROUP_IOSCHED
	help
	Enable some debugging help. Currently it exports additional stat
	files in a cgroup which can be useful for debugging.

endmenu

endif
Commit	Line	Data
b2441318	1	# SPDX-License-Identifier: GPL-2.0
9361401e	2	if BLOCK
1da177e4 LT	3
	4	menu "IO Schedulers"
	5
d3484991 JA	6	config MQ_IOSCHED_DEADLINE
	7	tristate "MQ deadline I/O scheduler"
	8	default y
a7f7f624	9	help
d3484991 JA	10	MQ version of the deadline IO scheduler.
d3484991 JA	11
08a9ad8b BVA	12	config MQ_IOSCHED_DEADLINE_CGROUP
	13	tristate
	14	default y
	15	depends on MQ_IOSCHED_DEADLINE
	16	depends on BLK_CGROUP
	17
00e04393 OS	18	config MQ_IOSCHED_KYBER
	19	tristate "Kyber I/O scheduler"
	20	default y
a7f7f624	21	help
00e04393 OS	22	The Kyber I/O scheduler is a low-overhead scheduler suitable for
	23	multiqueue and other fast devices. Given target latencies for reads and
	24	synchronous writes, it will self-tune queue depths to achieve that
	25	goal.
	26
aee69d78 PV	27	config IOSCHED_BFQ
aee69d78 PV	28	tristate "BFQ I/O scheduler"
a7f7f624	29	help
aee69d78 PV	30	BFQ I/O scheduler for BLK-MQ. BFQ distributes the bandwidth of
	31	of the device among all processes according to their weights,
	32	regardless of the device parameters and with any workload. It
	33	also guarantees a low latency to interactive and soft
	34	real-time applications. Details in
898bd37a	35	Documentation/block/bfq-iosched.rst
aee69d78	36
e21b7a0b AA	37	config BFQ_GROUP_IOSCHED
	38	bool "BFQ hierarchical scheduling support"
	39	depends on IOSCHED_BFQ && BLK_CGROUP
1d156646	40	select BLK_CGROUP_RWSTAT
a7f7f624	41	help
e21b7a0b AA	42
	43	Enable hierarchical scheduling in BFQ, using the blkio
	44	(cgroups-v1) or io (cgroups-v2) controller.
	45
8060c47b CH	46	config BFQ_CGROUP_DEBUG
	47	bool "BFQ IO controller debugging"
	48	depends on BFQ_GROUP_IOSCHED
a7f7f624	49	help
8060c47b CH	50	Enable some debugging help. Currently it exports additional stat
	51	files in a cgroup which can be useful for debugging.
	52
1da177e4	53	endmenu
9361401e DH	54
9361401e DH	55	endif