From: Mike Galbraith <umgwanakikbuti@gmail.com>
To: Namhyung Kim <namhyung@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: perf top -g -U --sort=symbol --children == lalalalala?
Date: Thu, 11 Sep 2014 14:43:12 +0200 [thread overview]
Message-ID: <1410439392.20184.17.camel@marge.simpson.net> (raw)
In-Reply-To: <CAM9d7cgCuVVNrA7DU=t_CgENLa-dxRW2HXoO3Uo6=2izshSjhg@mail.gmail.com>
On Thu, 2014-09-11 at 17:09 +0900, Namhyung Kim wrote:
> On Tue, Sep 9, 2014 at 10:37 PM, Arnaldo Carvalho de Melo
> <acme@ghostprotocols.net> wrote:
> > Em Tue, Sep 09, 2014 at 01:54:01PM +0200, Mike Galbraith escreveu:
> >> Seems the now default on --children thingy doesn't like -U much.
> >
> > Namhyung, can you please take a look at this?
>
> So what is the problem here?
Well, if you don't see anything wrong, I guess nothing at all.
> >> Samples: 5K of event 'cycles', Event count (approx.): 2268660922
> >> Children Self Symbol
> >> + 46.42% 0.04% [k] system_call_fastpath
I'll just turn it off until I figure out what cool stuff this is telling
me. why that symbol becomes the number one hit, and why total% > 100.
To me, it looks like top smoked it's breakfast, went to lala land ;-)
-Mike
next prev parent reply other threads:[~2014-09-11 12:43 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-09 11:54 Mike Galbraith
2014-09-09 13:37 ` Arnaldo Carvalho de Melo
2014-09-11 8:09 ` Namhyung Kim
2014-09-11 12:43 ` Mike Galbraith [this message]
2014-09-11 13:43 ` Arnaldo Carvalho de Melo
2014-09-11 21:30 ` Arnaldo Carvalho de Melo
2014-09-12 2:30 ` Mike Galbraith
2014-09-12 7:24 ` Namhyung Kim
2014-09-12 8:41 ` Mike Galbraith
2014-09-12 12:10 ` Arnaldo Carvalho de Melo
2014-09-12 12:07 ` Arnaldo Carvalho de Melo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1410439392.20184.17.camel@marge.simpson.net \
--to=umgwanakikbuti@gmail.com \
--cc=acme@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=namhyung@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®