Messages in this thread | | | From | Ian Rogers <> | Date | Fri, 6 Dec 2019 15:16:54 -0800 | Subject | Re: [PATCH v3 00/10] Optimize cgroup context switch |
| |
On Thu, Nov 14, 2019 at 10:17 AM Ian Rogers <irogers@google.com> wrote: > > 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
Apologies for the delay, I'm sending v5 that addresses review comments. I'm still working on performance numbers.
Thanks, Ian
| |