| From | Ian Rogers <> | Date | Thu, 14 Nov 2019 10:17:01 -0800 | Subject | Re: [PATCH v3 00/10] Optimize cgroup context switch |
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On Thu, Nov 14, 2019 at 2:45 AM Peter Zijlstra <peterz@infradead.org> wrote: > > On Wed, Nov 13, 2019 at 04:30:32PM -0800, Ian Rogers wrote: > > Avoid iterating over all per-CPU events during cgroup changing context > > switches by organizing events by cgroup. > > When last we spoke (Plumbers in Lisbon) you mentioned that this > optimization was yielding far less than expected. You had graphs showing > how the use of cgroups impacted event scheduling time and how this patch > set only reduced that a little. > > Any update on all that? There seems to be a conspicuous lack of such > data here.
I'm working on giving an update on the numbers but I suspect they are better than I'd measured ahead of LPC due to a bug in a script.
Thanks, Ian
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