linux/kernel/time
john stultz 3704540b48 tick management: spread timer interrupt
After discussing w/ Thomas over IRC, it seems the issue is the sched tick
fires on every cpu at the same time, causing extra lock contention.

This smaller change, adds an extra offset per cpu so the ticks don't line up.
This patch also drops the idle latency from 40us down to under 20us.

Signed-off-by: john stultz <johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-21 17:49:15 -07:00
..
clockevents.c Remove clockevents_{release,request}_device 2007-07-16 09:05:43 -07:00
clocksource.c clocksource: fix lock order in the resume path 2007-05-15 08:54:00 -07:00
jiffies.c [PATCH] fix jiffies clocksource inittime 2007-04-04 21:12:47 -07:00
Kconfig [PATCH] hrtimers: add high resolution timer support 2007-02-16 08:13:59 -08:00
Makefile Move timekeeping code to timekeeping.c 2007-05-08 11:15:06 -07:00
ntp.c [IA64] remove time interpolator 2007-07-20 11:23:02 -07:00
tick-broadcast.c clockevents: fix device replacement 2007-07-21 17:49:15 -07:00
tick-common.c clockevents: fix resume logic 2007-07-21 17:49:15 -07:00
tick-internal.h highres/dyntick: prevent xtime lock contention 2007-05-08 11:15:10 -07:00
tick-oneshot.c [PATCH] clockevents: Fix suspend/resume to disk hangs 2007-03-16 19:35:25 -07:00
tick-sched.c tick management: spread timer interrupt 2007-07-21 17:49:15 -07:00
timekeeping.c Pull ia64-clocksource into release branch 2007-07-20 11:26:47 -07:00
timer_list.c kallsyms: make KSYM_NAME_LEN include space for trailing '\0' 2007-07-17 10:23:03 -07:00
timer_stats.c kallsyms: make KSYM_NAME_LEN include space for trailing '\0' 2007-07-17 10:23:03 -07:00