Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Nick Piggin a2000572ad [PATCH] sched: remove smpnice ... I don't think the code is quite ready, which is why I asked for Peter's additions to also be merged before I acked it (although it turned out that it still isn't quite ready with his additions either). Basically I have had similar observations to Suresh in that it does not play nicely with the rest of the balancing infrastructure (and raised similar concerns in my review). The samples (group of 4) I got for "maximum recorded imbalance" on a 2x2 SMP+HT Xeon are as follows: | Following boot | hackbench 20 | hackbench 40 -----------+----------------+---------------------+--------------------- 2.6.16-rc2 | 30,37,100,112 | 5600,5530,6020,6090 | 6390,7090,8760,8470 +nosmpnice | 3, 2, 4, 2 | 28, 150, 294, 132 | 348, 348, 294, 347 Hackbench raw performance is down around 15% with smpnice (but that in itself isn't a huge deal because it is just a benchmark). However, the samples show that the imbalance passed into move_tasks is increased by about a factor of 10-30. I think this would also go some way to explaining latency blips turning up in the balancing code (though I haven't actually measured that). We'll probably have to revert this in the SUSE kernel. Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Peter Williams <pwil3058@bigpond.net.au> Cc: "Martin J. Bligh" <mbligh@aracnet.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-02-10 08:13:11 -08:00
..
irq	[PATCH] kernel/: small cleanups	2006-01-08 20:13:48 -08:00
power	[PATCH] Fix build failure in recent pm_prepare_* changes.	2006-02-07 16:12:33 -08:00
.gitignore	gitignore: ignore more generated files	2006-01-03 11:35:26 +01:00
acct.c	[PATCH] move capable() to capability.h	2006-01-11 18:42:13 -08:00
audit.c	[PATCH] EDAC: atomic scrub operations	2006-01-18 19:20:30 -08:00
auditsc.c	[PATCH] EDAC: atomic scrub operations	2006-01-18 19:20:30 -08:00
capability.c	[PATCH] move capable() to capability.h	2006-01-11 18:42:13 -08:00
compat.c	[PATCH] remove bogus asm/bug.h includes.	2006-02-07 20:56:35 -05:00
configs.c	update the email address of Randy Dunlap	2006-01-03 13:37:51 +01:00
cpu.c	[PATCH] clean up lock_cpu_hotplug() in cpufreq	2005-11-28 14:42:23 -08:00
cpuset.c	[PATCH] cpuset: fix sparse warning	2006-02-03 08:32:06 -08:00
dma.c
exec_domain.c
exit.c	[PATCH] Unlinline a bunch of other functions	2006-01-14 18:27:06 -08:00
extable.c
fork.c	[PATCH] unshare system call -v5: unshare files	2006-02-07 16:12:34 -08:00
futex.c	[PATCH] FRV: Make futex code compilable on nommu [try #2]	2006-01-06 08:33:33 -08:00
hrtimer.c	[PATCH] hrtimers: add back lost credit lines	2006-02-01 08:53:13 -08:00
intermodule.c	[PATCH] missing license tag in intermodule	2006-02-05 11:06:52 -08:00
itimer.c	[PATCH] hrtimers: fix oldvalue return in setitimer	2006-02-01 08:53:12 -08:00
kallsyms.c	[PATCH] fix missing includes	2005-10-30 17:37:32 -08:00
Kconfig.hz
Kconfig.preempt
kexec.c	[PATCH] move capable() to capability.h	2006-01-11 18:42:13 -08:00
kfifo.c
kmod.c	[PATCH] Keys: Get rid of warning in kmod.c if keys disabled	2005-10-30 17:37:23 -08:00
kprobes.c	[PATCH] Kprobes: Fix deadlock in function-return probes	2006-02-03 08:32:00 -08:00
ksysfs.c	[PATCH] kdump: export per cpu crash notes pointer through sysfs	2006-01-10 08:01:26 -08:00
kthread.c
Makefile	[PATCH] build kernel/intermodule.c only when required	2006-01-16 23:15:26 -08:00
module.c	[PATCH] module: strlen_user() race fix	2006-02-07 16:12:32 -08:00
mutex-debug.c	[PATCH] fix/simplify mutex debugging code	2006-01-11 08:14:16 -08:00
mutex-debug.h	[PATCH] mutex subsystem, debugging code	2006-01-09 15:59:20 -08:00
mutex.c	[PATCH] mutex: trivial whitespace cleanups	2006-01-10 14:27:59 -08:00
mutex.h	[PATCH] mutex subsystem, core	2006-01-09 15:59:19 -08:00
panic.c	[PATCH] s390: cleanup Kconfig	2006-01-06 08:33:53 -08:00
params.c	[PATCH] kernel/params.c: fix sysfs access with CONFIG_MODULES=n	2005-12-20 10:31:33 -08:00
pid.c	[PATCH] RCU signal handling	2006-01-08 20:13:40 -08:00
posix-cpu-timers.c	[PATCH] hrtimer: switch clock_nanosleep to hrtimer nanosleep API	2006-01-10 08:01:38 -08:00
posix-timers.c	[PATCH] kernel/posix-timers.c: remove do_posix_clock_notimer_create()	2006-02-01 08:53:13 -08:00
printk.c	correct email address of Manfred Spraul	2006-01-15 02:43:54 +01:00
profile.c
ptrace.c	[PATCH] move capable() to capability.h	2006-01-11 18:42:13 -08:00
rcupdate.c	[PATCH] rcu: fix hotplug-cpu ->donelist leak	2006-01-10 08:49:47 -08:00
rcutorture.c	[PATCH] rcu_torture_lock deadlock fix	2006-01-31 11:30:18 -08:00
resource.c	[PATCH] kernel/resource.c: __check_region(): remove pointless __deprecated	2006-01-10 08:02:02 -08:00
sched.c	[PATCH] sched: remove smpnice	2006-02-10 08:13:11 -08:00
seccomp.c
signal.c	[PATCH] do_sigaction: cleanup ->sa_mask manipulation	2006-02-09 16:17:36 -08:00
softirq.c	[PATCH] cpu hoptlug: avoid usage of smp_processor_id() in preemptible code	2005-11-07 07:53:29 -08:00
softlockup.c	[PATCH] quieten softlockup at boot	2005-11-09 07:55:50 -08:00
spinlock.c
stop_machine.c	[PATCH] Remove set_fs() in stop_machine()	2006-01-10 08:01:25 -08:00
sys.c	[PATCH] kernel/sys.c NULL noise removal	2006-02-07 20:57:47 -05:00
sys_ni.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge	2006-01-09 10:03:44 -08:00
sysctl.c	[PATCH] zone_reclaim: configurable off node allocation period.	2006-02-01 08:53:16 -08:00
time.c	[PATCH] Normalize timespec for negative values in ns_to_timespec	2006-02-03 08:32:06 -08:00
timer.c	[PATCH] timer.c NULL noise removal	2006-02-07 20:57:42 -05:00
uid16.c	[PATCH] move capable() to capability.h	2006-01-11 18:42:13 -08:00
user.c	[PATCH] "Fix uidhash_lock <-> RXU deadlock" fix	2006-01-31 16:49:43 -08:00
wait.c
workqueue.c	[PATCH] Unlinline a bunch of other functions	2006-01-14 18:27:06 -08:00