Re: [PATCH 12/14] perf ftrace: Use pager for displaying result

From: Jiri Olsa
Date: Mon May 06 2013 - 07:38:41 EST


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@xxxxxxx>
> >> >>
> >> >> 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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