From: Francis Moreau <francis.moro@gmail.com>
To: David Ahern <dsahern@gmail.com>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: how to get a kernel callgraph starting from a syscall
Date: Thu, 21 Apr 2011 22:07:08 +0200 [thread overview]
Message-ID: <BANLkTimZA6YA07d8hNKuxhoySvHpTmWjvw@mail.gmail.com> (raw)
In-Reply-To: <4DB08A5B.3060706@gmail.com>
On Thu, Apr 21, 2011 at 9:49 PM, David Ahern <dsahern@gmail.com> wrote:
>
> You want the individual samples? if so, perf script dumps them and you
> can see the callchain for each sys_read.
>
hmm, I don't see what you mean by individual samples.
I don't think sampling can help in my case (tracing the callchain of
one syscall).
Could you give me an example of what you have in mind ?
Thanks
--
Francis
next prev parent reply other threads:[~2011-04-21 20:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-21 7:46 how to get a kernel callgraph starting from a syscall Francis Moreau
2011-04-21 15:23 ` David Ahern
2011-04-21 18:48 ` Francis Moreau
2011-04-21 19:49 ` David Ahern
2011-04-21 20:07 ` Francis Moreau [this message]
2011-04-22 0:47 ` David Ahern
2011-04-22 5:29 ` Francis Moreau
2011-04-22 11:46 ` Francis Moreau
2011-04-23 8:40 ` Stefan Hajnoczi
2011-04-23 9:01 ` Francis Moreau
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