Re: [PATCH v2 3/5] mm: memcg: make stats flushing threshold per-memcg

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On Wed, Oct 18, 2023 at 1:22 AM Oliver Sang <oliver.sang@xxxxxxxxx> wrote:
>
> hi, Yosry Ahmed, hi, Shakeel Butt,
>
> On Thu, Oct 12, 2023 at 03:23:06PM -0700, Yosry Ahmed wrote:
> > On Thu, Oct 12, 2023 at 2:39 PM Shakeel Butt <shakeelb@xxxxxxxxxx> wrote:
> > >
> > > On Thu, Oct 12, 2023 at 2:20 PM Yosry Ahmed <yosryahmed@xxxxxxxxxx> wrote:
> > > >
> > > [...]
> > > > >
> > > > > Yes this looks better. I think we should also ask intel perf and
> > > > > phoronix folks to run their benchmarks as well (but no need to block
> > > > > on them).
> > > >
> > > > Anything I need to do for this to happen? (I thought such testing is
> > > > already done on linux-next)
> > >
> > > Just Cced the relevant folks.
> > >
> > > Michael, Oliver & Feng, if you have some time/resource available,
> > > please do trigger your performance benchmarks on the following series
> > > (but nothing urgent):
> > >
> > > https://lore.kernel.org/all/20231010032117.1577496-1-yosryahmed@xxxxxxxxxx/
> >
> > Thanks for that.
>
> we (0day team) have already applied the patch-set as:
>
> c5f50d8b23c79 (linux-review/Yosry-Ahmed/mm-memcg-change-flush_next_time-to-flush_last_time/20231010-112257) mm: memcg: restore subtree stats flushing
> ac8a48ba9e1ca mm: workingset: move the stats flush into workingset_test_recent()
> 51d74c18a9c61 mm: memcg: make stats flushing threshold per-memcg
> 130617edc1cd1 mm: memcg: move vmstats structs definition above flushing code
> 26d0ee342efc6 mm: memcg: change flush_next_time to flush_last_time
> 25478183883e6 Merge branch 'mm-nonmm-unstable' into mm-everything   <---- the base our tool picked for the patch set
>
> they've already in our so-called hourly-kernel which under various function
> and performance tests.
>
> our 0day test logic is if we found any regression by these hourly-kernels
> comparing to base (e.g. milestone release), auto-bisect will be triggnered.
> then we only report when we capture a first bad commit for a regression.
>
> based on this, if you don't receive any report in following 2-3 weeks, you
> could think 0day cannot capture any regression from your patch-set.
>
> *However*, please be aware that 0day is not a traditional CI system, and also
> due to resource constraints, we cannot guaratee coverage, we cannot tigger
> specific tests for your patchset, either.
> (sorry if this is not your expectation)
>

Thanks for taking a look and clarifying this, much appreciated.
Fingers crossed for not getting any reports :)




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