linux-kernel - Re: [PATCH v2 0/5] Introduce memcg_stock

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Message-ID: <Y9IvoDJbLbFcitTc@dhcp22.suse.cz>
Date:   Thu, 26 Jan 2023 08:45:36 +0100
From:   Michal Hocko <mhocko@...e.com>
To:     Marcelo Tosatti <mtosatti@...hat.com>
Cc:     Leonardo Brás <leobras@...hat.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Roman Gushchin <roman.gushchin@...ux.dev>,
        Shakeel Butt <shakeelb@...gle.com>,
        Muchun Song <muchun.song@...ux.dev>,
        Andrew Morton <akpm@...ux-foundation.org>,
        cgroups@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/5] Introduce memcg_stock_pcp remote draining

On Wed 25-01-23 15:22:00, Marcelo Tosatti wrote:
[...]
> Remote draining reduces interruptions whether CPU 
> is marked as isolated or not:
> 
> - Allows isolated CPUs from benefiting of pcp caching.
> - Removes the interruption to non isolated CPUs. See for example 
> 
> https://lkml.org/lkml/2022/6/13/2769

This is talking about page allocato per cpu caches, right? In this patch
we are talking about memcg pcp caches. Are you sure the same applies
here?
-- 
Michal Hocko
SUSE Labs