From: David Ahern <dsahern@gmail.com>
To: Chao Xu <caesarxuchao@gmail.com>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: perf record always record the same kernel symbol
Date: Fri, 10 May 2013 13:12:42 -0600 [thread overview]
Message-ID: <518D46AA.1000006@gmail.com> (raw)
In-Reply-To: <CAKZq+rfUO070Ph38EeOzGGxG3CtWiLZ4-eH=PLgby62Ugk3w1w@mail.gmail.com>
On 5/10/13 1:04 PM, Chao Xu wrote:
> Hi,
>
> I issued the following commands:
> sudo perf record sleep 1
> sudo perf report
you are profiling the 'sleep' command which is not very exciting. Try:
sudo perf record -a -- sleep 1
sudo perf report
David
next prev parent reply other threads:[~2013-05-10 19:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-10 19:04 perf record always record the same kernel symbol Chao Xu
2013-05-10 19:12 ` David Ahern [this message]
[not found] ` <CAKZq+rcx8qAmU8ZW8QTcrw3sd28-_5kbo6e5qXZuKqSAjYEm2Q@mail.gmail.com>
2013-05-10 20:22 ` David Ahern
2013-05-10 20:43 ` Chao Xu
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