Messages in this thread | | | Date | Wed, 9 Apr 2014 16:03:00 +0530 | Subject | [Query]: tick-sched: why don't we stop tick when we are running idle task? | From | Viresh Kumar <> |
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Hi Frederic,
File: kernel/time/tick-sched.c Function: tick_nohz_full_stop_tick()
We are doing this:
if (!tick_nohz_full_cpu(cpu) || is_idle_task(current)) return;
Which means: if a FULL_NO_HZ cpu is running idle task currently, don't stop its tick..
I couldn't understand why. Can you please help here?
-- viresh
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