Shaohua Li ef8a41df8c cfq-iosched: give busy sync queue no dispatch limit ... If there are a sync and an async queue and the sync queue's think time is small, we can ignore the sync queue's dispatch quantum. Because the sync queue will always preempt the async queue, we don't need to care about async's latency. This can fix a performance regression of aiostress test, which is introduced by commit f8ae6e3eb8. The issue should exist even without the commit, but the commit amplifies the impact. The initial post does the same optimization for RT queue too, but since I have no real workload for it, Vivek suggests to drop it. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Reviewed-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>		2011-03-07 09:26:29 +01:00
..
blk-cgroup.c
blk-cgroup.h
blk-core.c	block: Move blk_throtl_exit() call to blk_cleanup_queue()	2011-03-02 19:06:49 -05:00
blk-exec.c
blk-flush.c
blk-integrity.c
blk-ioc.c
blk-iopoll.c
blk-lib.c
blk-map.c
blk-merge.c
blk-settings.c	block: Initialize ->queue_lock to internal lock at queue allocation time	2011-03-02 19:06:49 -05:00
blk-softirq.c
blk-sysfs.c	block: Move blk_throtl_exit() call to blk_cleanup_queue()	2011-03-02 19:06:49 -05:00
blk-tag.c
blk-throttle.c	block: Move blk_throtl_exit() call to blk_cleanup_queue()	2011-03-02 19:06:49 -05:00
blk-timeout.c
blk.h
bsg.c
cfq-iosched.c	cfq-iosched: give busy sync queue no dispatch limit	2011-03-07 09:26:29 +01:00
cfq.h
compat_ioctl.c
deadline-iosched.c
elevator.c	block: share request flush fields with elevator_private	2011-02-11 11:08:00 +01:00
genhd.c	block/genhd: Change some numerals into macros	2011-03-02 11:00:15 -05:00
ioctl.c
Kconfig
Kconfig.iosched
Makefile
noop-iosched.c
scsi_ioctl.c