Messages in this thread | | | Subject | Re: fast path cycle muncher (vmstat: make vmstat_updater deferrable again and shut down on idle) | From | Mike Galbraith <> | Date | Tue, 26 Jan 2016 18:39:21 +0100 |
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On Tue, 2016-01-26 at 10:26 -0600, Christoph Lameter wrote: > On Tue, 26 Jan 2016, Mike Galbraith wrote: > > > On Tue, 2016-01-26 at 03:14 +0100, Mike Galbraith wrote: > > > > > Perf and RT say we don't want quiet_vmstat() in the idle loop > > > either. > > > > BTW, the perf numbers were not from an RT kernel, they were from my > > PREEMPT_VOLUNTARY desktop kernel. > > Can we move quiet_vmstat() elsewhere after we have checked that really > nothing else is going on soon?
How would you check? Precognition doesn't work for mortals.
-Mike
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