Jens Axboe caaa5f9f0a [PATCH] cfq-iosched: many performance fixes ... This is a collection of patches that greatly improve CFQ performance in some circumstances. - Change the idling logic to only kick in after a request is done and we are deciding what to do. Before the idling included the request service time, so it was hard to adjust. Now it's true think/idle time. - Take advantage of TCQ/NCQ/queueing for seeky sync workloads, but keep it in control for sync and sequential (or close to) workloads. - Expire queues immediately and move on to other busy queues, if we are not going to idle after the current one finishes. - Don't rearm idle timer if there are no busy queues. Just leave the system idle. Signed-off-by: Jens Axboe <axboe@suse.de>		2006-06-23 17:10:39 +02:00
..
as-iosched.c	[PATCH] Kill PF_SYNCWRITE flag	2006-06-23 17:10:39 +02:00
blktrace.c	[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23	2006-03-23 20:00:26 +01:00
cfq-iosched.c	[PATCH] cfq-iosched: many performance fixes	2006-06-23 17:10:39 +02:00
deadline-iosched.c	[PATCH] iosched: use hlist for request hashtable	2006-06-23 17:10:38 +02:00
elevator.c	[PATCH] remove dead code from elevator switching	2006-06-23 17:10:38 +02:00
genhd.c	[PATCH] Driver core: add generic "subsystem" link to all devices	2006-06-21 12:40:49 -07:00
ioctl.c	[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23	2006-03-23 20:00:26 +01:00
Kconfig	[PATCH] config: fix CONFIG_LFS option	2006-03-31 12:18:55 -08:00
Kconfig.iosched	[PATCH] Make CFQ the default IO scheduler	2006-06-23 17:10:39 +02:00
ll_rw_blk.c	[PATCH] Kill PF_SYNCWRITE flag	2006-06-23 17:10:39 +02:00
Makefile	[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23	2006-03-23 20:00:26 +01:00
noop-iosched.c	[PATCH] elevator switching race	2006-06-08 15:14:23 -07:00
scsi_ioctl.c	[SCSI] unify SCSI_IOCTL_SEND_COMMAND implementations	2006-04-13 10:13:15 -05:00