Messages in this thread | | | Subject | Re: [RFC patch 1/2] sched: dynamically adapt granularity with nr_running | From | Mike Galbraith <> | Date | Mon, 13 Sep 2010 11:16:13 +0200 |
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On Mon, 2010-09-13 at 10:35 +0200, Peter Zijlstra wrote: > On Mon, 2010-09-13 at 09:08 +0200, Mike Galbraith wrote: > > We need a better fork fairness gizmo. > > Proper zero-lag insertion would do. Much sadness in that tracking that > costs a u64 mult per enqueu/dequeue and using it adds a s64 div.
(math _sucks_:)
> But if you want, have a play with:
maximum latency: 48475.3 µs average latency: 6881.4 µs missed timer events: 0
Darn.
make -j3 is gaining a tad over a hog as well, roughly the same as turning START_DEBIT off.
-Mike
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