From: Michal Hocko <mhocko@kernel.org>
To: Janani Ravichandran <janani.rvchndrn@gmail.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
riel@surriel.com, akpm@linux-foundation.org,
vdavydov@virtuozzo.com, vbabka@suse.cz,
mgorman@techsingularity.net, rostedt@goodmis.org
Subject: Re: [RFC] scripts: Include postprocessing script for memory allocation tracing
Date: Mon, 19 Sep 2016 11:42:24 +0200 [thread overview]
Message-ID: <20160919094224.GH10785@dhcp22.suse.cz> (raw)
In-Reply-To: <0ACE5927-A6E5-4B49-891D-F990527A9F50@gmail.com>
On Tue 13-09-16 14:04:49, Janani Ravichandran wrote:
>
> > On Sep 12, 2016, at 8:16 AM, Michal Hocko <mhocko@kernel.org> wrote:
> >
> > Hi,
>
> Hello Michal,
>
> > I am sorry I didn't follow up on the previous submission.
>
> Thata??s alright :)
>
> > I find this
> > _really_ helpful. It is great that you could build on top of existing
> > tracepoints but one thing is not entirely clear to me. Without a begin
> > marker in __alloc_pages_nodemask we cannot really tell how long the
> > whole allocation took, which would be extremely useful. Or do you use
> > any graph tracer tricks to deduce that?
>
> Ia??m using the function graph tracer to see how long __alloc_pages_nodemask()
> took.
How can you map the function graph tracer to a specif context? Let's say
I would like to know why a particular allocation took so long. Would
that be possible?
--
Michal Hocko
SUSE Labs
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next prev parent reply other threads:[~2016-09-19 9:42 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-11 22:24 Janani Ravichandran
2016-09-12 12:16 ` Michal Hocko
2016-09-13 18:04 ` Janani Ravichandran
2016-09-19 9:42 ` Michal Hocko [this message]
2016-09-22 15:30 ` Janani Ravichandran
2016-09-23 8:07 ` Michal Hocko
2016-10-06 12:00 ` Michal Hocko
2016-10-11 14:43 ` Janani Ravichandran
2016-10-15 23:31 ` Janani Ravichandran
2016-10-16 7:33 ` Michal Hocko
[not found] ` <CANnt6X=RpSnuxGXZfF6Qa5mJpzC8gL3wkKJi3tQMZJBZJVWF3w@mail.gmail.com>
2016-10-17 17:31 ` Janani Ravichandran
2016-10-18 13:13 ` Michal Hocko
2016-10-20 23:10 ` Janani Ravichandran
2016-10-21 7:08 ` Michal Hocko
2016-10-27 15:42 ` Janani Ravichandran
-- strict thread matches above, loose matches on Subject: below --
2016-08-19 11:38 Janani Ravichandran
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