From: Michal Hocko <mhocko@kernel.org>
To: Yafang Shao <laoar.shao@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Chris Down <chris@chrisdown.name>,
Andrew Morton <akpm@linux-foundation.org>,
Cgroups <cgroups@vger.kernel.org>, Linux MM <linux-mm@kvack.org>,
shaoyafang@didiglobal.com
Subject: Re: [PATCH] mm/memcg: add allocstall to memory.stat
Date: Fri, 12 Apr 2019 11:36:41 +0200 [thread overview]
Message-ID: <20190412093641.GG13373@dhcp22.suse.cz> (raw)
In-Reply-To: <CALOAHbAcXDDdq_XO+hvwTq6PMNjFFgHAY2OPmkAReKV8-wR6sg@mail.gmail.com>
On Fri 12-04-19 17:29:04, Yafang Shao wrote:
> On Fri, Apr 12, 2019 at 5:09 PM Michal Hocko <mhocko@kernel.org> wrote:
[...]
> > > Then we can do some trace for this memcg, i.e. to trace how long the
> > > applicatons may stall via tracepoint.
> > > (but current tracepoints can't trace a specified cgroup only, that's
> > > another point to be improved.)
> >
> > It is a task that is stalled, not a cgroup.
>
> But these tracepoints can't filter a speficied task neither.
each trace line output should cotain a pid, no?
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2019-04-12 9:36 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-11 11:59 Yafang Shao
2019-04-11 12:26 ` Michal Hocko
2019-04-11 12:41 ` Yafang Shao
2019-04-11 13:39 ` Michal Hocko
2019-04-11 13:54 ` Yafang Shao
2019-04-11 15:10 ` Michal Hocko
2019-04-12 1:32 ` Yafang Shao
2019-04-12 6:34 ` Michal Hocko
2019-04-12 8:10 ` Yafang Shao
2019-04-12 9:09 ` Michal Hocko
2019-04-12 9:29 ` Yafang Shao
2019-04-12 9:36 ` Michal Hocko [this message]
2019-04-12 9:48 ` Yafang Shao
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