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Date: Wed, 10 Jul 2013 16:18:20 +0200
From: Jiri Olsa <jolsa@redhat.com>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@kernel.org>,
        Namhyung Kim <namhyung.kim@lge.com>,
        LKML <linux-kernel@vger.kernel.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        Frederic Weisbecker <fweisbec@gmail.com>,
        David Ahern <dsahern@gmail.com>, Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH 06/19] perf ftrace: Add support for --pid option
Message-ID: <20130710141820.GA5931@krava.brq.redhat.com>
References: <1372230862-15861-1-git-send-email-namhyung@kernel.org>
 <1372230862-15861-7-git-send-email-namhyung@kernel.org>
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On Wed, Jun 26, 2013 at 04:14:09PM +0900, Namhyung Kim wrote:
> From: Namhyung Kim <namhyung.kim@lge.com>
> 
> The -p (--pid) option enables to trace existing process by its pid.

hi,
I can't get any output from -p for live subcommand:

[jolsa@krava perf]$ pgrep yes
6443
[jolsa@krava perf]$ sudo ./perf ftrace live -p `pgrep yes`

jirka