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authorSiddha, Suresh B <suresh.b.siddha@intel.com>2006-06-27 13:54:42 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-28 04:32:45 +0400
commit5c45bf279d378d436ce45825c0f136696c7b6109 (patch)
tree80e2fcf4866b84fccb787562e1a83b16f4bc8850 /include/asm-h8300/siginfo.h
parent369381694ddcf03f1de403501c8b97099b5109ec (diff)
downloadlinux-5c45bf279d378d436ce45825c0f136696c7b6109.tar.xz
[PATCH] sched: mc/smt power savings sched policy
sysfs entries 'sched_mc_power_savings' and 'sched_smt_power_savings' in /sys/devices/system/cpu/ control the MC/SMT power savings policy for the scheduler. Based on the values (1-enable, 0-disable) for these controls, sched groups cpu power will be determined for different domains. When power savings policy is enabled and under light load conditions, scheduler will minimize the physical packages/cpu cores carrying the load and thus conserving power(with a perf impact based on the workload characteristics... see OLS 2005 CMP kernel scheduler paper for more details..) Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Con Kolivas <kernel@kolivas.org> Cc: "Chen, Kenneth W" <kenneth.w.chen@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-h8300/siginfo.h')
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