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Files

Peter Zijlstra 15afe09bf4 sched: wakeup preempt when small overlap

Lin Ming reported a 10% OLTP regression against 2.6.27-rc4.

The difference seems to come from different preemption agressiveness,
which affects the cache footprint of the workload and its effective
cache trashing.

Aggresively preempt a task if its avg overlap is very small, this should
avoid the task going to sleep and find it still running when we schedule
back to it - saving a wakeup.

Reported-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2008-09-22 16:28:32 +02:00

acpi

ACPICA: Additional error checking for pathname utilities

2008-08-15 02:12:16 +02:00

asm-arm

[ARM] 5191/1: ARM: remove CVS keywords

2008-08-16 20:01:18 +01:00

asm-cris

Reduce brokenness of CRIS headers_install

2008-08-20 13:19:51 -07:00

asm-frv

FRV: Provide ioremap_wc() for FRV