linux/include
Jens Axboe 3b18152c32 [PATCH] CFQ io scheduler updates
- Adjust slice values

- Instead of one async queue, one is defined per priority level. This
  prevents kernel threads (such as reiserfs/x and others) that run at
  higher io priority from conflicting with others. Previously, it was a
  coin toss what io prio the async queue got, it was defined by who
  first set up the queue.

- Let a time slice only begin, when the previous slice is completely
  done. Previously we could be somewhat unfair to a new sync slice, if
  the previous slice was async and had several ios queued. This might
  need a little tweaking if throughput suffers a little due to this,
  allowing perhaps an overlap of a single request or so.

- Optimize the calling of kblockd_schedule_work() by doing it only when
  it is strictly necessary (no requests in driver and work left to do).

- Correct sync vs async logic. A 'normal' process can be purely async as
  well, and a flusher can be purely sync as well. Sync or async is now a
  property of the class defined and requests pending. Previously writers
  could be considered sync, when they were really async.

- Get rid of the bit fields in cfqq and crq, use flags instead.

- Various other cleanups and fixes

Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-27 14:33:30 -07:00
..
acpi Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
asm-alpha [PATCH] remove non-DISCONTIG use of pgdat->node_mem_map 2005-06-23 09:45:00 -07:00
asm-arm [PATCH] ARM: 2756/1: add ixp2000 msf mapping 2005-06-26 22:24:17 +01:00
asm-arm26 [PATCH] streamline preempt_count type across archs 2005-06-23 09:45:19 -07:00
asm-cris [PATCH] streamline preempt_count type across archs 2005-06-23 09:45:19 -07:00
asm-frv [PATCH] streamline preempt_count type across archs 2005-06-23 09:45:19 -07:00
asm-generic [PATCH] kexec: vmlinux: fix physical addresses 2005-06-25 16:24:47 -07:00
asm-h8300 [PATCH] streamline preempt_count type across archs 2005-06-23 09:45:19 -07:00
asm-i386 [PATCH] Update cfq io scheduler to time sliced design 2005-06-27 14:33:29 -07:00
asm-ia64 [PATCH] Update cfq io scheduler to time sliced design 2005-06-27 14:33:29 -07:00
asm-m32r [PATCH] streamline preempt_count type across archs 2005-06-23 09:45:19 -07:00
asm-m68k [PATCH] streamline preempt_count type across archs 2005-06-23 09:45:19 -07:00
asm-m68knommu [PATCH] streamline preempt_count type across archs 2005-06-23 09:45:19 -07:00
asm-mips [PATCH] sched: cleanup context switch locking 2005-06-25 16:24:43 -07:00
asm-parisc [PATCH] compat: introduce compat_time_t 2005-06-23 09:45:32 -07:00
asm-ppc [PATCH] Update cfq io scheduler to time sliced design 2005-06-27 14:33:29 -07:00
asm-ppc64 [PATCH] ppc64: kexec support for ppc64 2005-06-25 16:24:51 -07:00
asm-s390 [PATCH] kexec: s390 support 2005-06-25 16:24:51 -07:00
asm-sh [PATCH] streamline preempt_count type across archs 2005-06-23 09:45:19 -07:00
asm-sh64 [PATCH] streamline preempt_count type across archs 2005-06-23 09:45:19 -07:00
asm-sparc [PATCH] sched: cleanup context switch locking 2005-06-25 16:24:43 -07:00
asm-sparc64 [PATCH] sched: cleanup context switch locking 2005-06-25 16:24:43 -07:00
asm-um [PATCH] uml: add profile_pc for i386 2005-06-25 16:24:36 -07:00
asm-v850 [PATCH] streamline preempt_count type across archs 2005-06-23 09:45:19 -07:00
asm-x86_64 [PATCH] Update cfq io scheduler to time sliced design 2005-06-27 14:33:29 -07:00
asm-xtensa [PATCH] xtensa: Architecture support for Tensilica Xtensa Part 8 2005-06-24 00:05:22 -07:00
linux [PATCH] CFQ io scheduler updates 2005-06-27 14:33:30 -07:00
math-emu Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
media [PATCH] v4l: update for SAA7134 cards 2005-06-24 00:06:39 -07:00
mtd Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
net Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2005-06-24 00:31:46 -07:00
pcmcia [PATCH] yenta TI: turn off interrupts during card power-on #2 2005-06-23 09:45:31 -07:00
rxrpc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
scsi [PATCH] I2O: Adaptec specific SG_IO access, firmware access through sysfs and 2400A workaround 2005-06-24 00:05:28 -07:00
sound [PATCH] create a kstrdup library function 2005-06-23 09:45:18 -07:00
video [PATCH] Clean-up and bug fix for tdfxfb framebuffer size detection 2005-05-01 08:59:25 -07:00