Messages in this thread | | | Date | Tue, 30 Jan 2018 14:06:06 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH 4/4] sched/fair: Use a recently used CPU as an idle candidate and the basis for SIS |
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On Tue, Jan 30, 2018 at 12:53:49PM +0100, Peter Zijlstra wrote: > On Tue, Jan 30, 2018 at 10:45:55AM +0000, Mel Gorman wrote: > > The results can be less dramatic on NUMA where automatic balancing interferes > > with the test. It's also known that network benchmarks running on localhost > > also benefit quite a bit from this patch (roughly 10% on netperf RR for UDP > > and TCP depending on the machine). Hackbench also seens small improvements > > (6-11% depending on machine and thread count). The facebook schbench was also > > tested but in most cases showed little or no different to wakeup latencies. > > What cpufreq setting were you using for these tests?
I cannot measure any hackbench variation one way or the other with these patches using 'performance' mode. So I'll assume you've been running things with HWP or something.
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