Re: [PATCH] memcg: provide reclaim stats via 'memory.reclaim'

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On Mon, May 23, 2022 at 03:50:34PM -0700, Yosry Ahmed wrote:
> I think it might be useful to have a dedicated entry in memory.stat
> for proactively reclaimed memory. A case where this would be useful is
> tuning and evaluating userspace proactive reclaimers. For instance, if
> a userspace agent is asking the kernel to reclaim 100M, but it could
> only reclaim 10M, then most probably the proactive reclaimer is not
> using a good methodology to figure out how much memory do we need to
> reclaim.
> 
> IMO this is more useful, and a superset of just reading the last
> reclaim request status through memory.reclaim (read stat before and
> after).

+1




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