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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2008-09-01 16:44:23 +0200
committerIngo Molnar <mingo@elte.hu>2008-09-05 18:14:08 +0200
commit56c7426b3951e4f35a71d695f1c982989399d6fd (patch)
tree26001a24308baceab1ff36eb8ab1ed43fb831a4f /include
parentb380b0d4f7dffcc235c0facefa537d4655619101 (diff)
sched_clock: fix NOHZ interaction
If HLT stops the TSC, we'll fail to account idle time, thereby inflating the actual process times. Fix this by re-calibrating the clock against GTOD when leaving nohz mode. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Tested-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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