Date: Mon, 6 May 2013 13:38:19 +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 12/14] perf ftrace: Use pager for displaying result
Message-ID: <20130506113819.GB1093@krava.brq.redhat.com>
References: <1366705872-12132-1-git-send-email-namhyung@kernel.org>
 <1366705872-12132-13-git-send-email-namhyung@kernel.org>
 <20130424141724.GH971@krava.brq.redhat.com>
 <877gjr9k8q.fsf@sejong.aot.lge.com>
 <20130426084023.GB1054@krava.brq.redhat.com>
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On Mon, May 06, 2013 at 10:52:46AM +0900, Namhyung Kim wrote:
> On Fri, 26 Apr 2013 10:40:23 +0200, Jiri Olsa wrote:
> > On Thu, Apr 25, 2013 at 03:50:45PM +0900, Namhyung Kim wrote:
> >> On Wed, 24 Apr 2013 16:17:24 +0200, Jiri Olsa wrote:
> >> > On Tue, Apr 23, 2013 at 05:31:10PM +0900, Namhyung Kim wrote:
> >> >> From: Namhyung Kim <namhyung.kim@lge.com>
> >> >> 
> >> >> It's convenient to use pager when seeing many lines of result.
> >> >> 
> >> > for some reason I'm able to get any output for 'live' command only
> >> > when using --no-pager option. I dont get any data for:
> >> >
> >> >   # ./perf ftrace live ls
> >> >
> >> >   not even ls output
> >
> > ok, now with your patch I get allways ls output correctly in pager
> 
> "ls output" only?  What about the ftrace outputs?
> 
> >
> >> >
> >> > But sometime I dont even get ftrace output for:
> >> >
> >> >   # ./perf --no-pager ftrace live ls
> >> >
> >> >   just ls output
> >
> > this one still persists
> 
> Hmm.. still hard to reproduce.. :(
> 
> As it's --no-pager mode, so that it can be reproduced for you without
> this patch, right?

right, I still see the second issue (not getting ftrace output)
regardless of the patch being applied or not

jirka
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