All of lore.kernel.org
 help / color / mirror / Atom feed
From: Ingo Molnar <mingo@elte.hu>
To: sebastien cabaniols <sebastien.cabaniols@hp.com>
Cc: linux-kernel@vger.kernel.org, Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: performance counter for linux question.
Date: Sat, 19 Sep 2009 10:01:14 +0200	[thread overview]
Message-ID: <20090919080114.GA7676@elte.hu> (raw)
In-Reply-To: <200909171428.23610.sebastien.cabaniols@hp.com>


* sebastien cabaniols <sebastien.cabaniols@hp.com> wrote:

> Hello list,
> 
> I am interested by monitoring instructions versus cycles with a Nehalem box 
> using 2.6.31 with PCL.
> 
> Is there a way with perf report to display both counters ?
> 
> I used
> 
> perf record -e cycles -e instructions -a  for the recording session.
> 
> perf report -n seems to be doing what I need but for only one counter.
> 
> Is this a limitation of perf report ? 
> Is this an architectural limitation of PCL ?
> Is there more documentation than what is in the perf directory in the 2.6.31 
> tarball ?

You can find a description and a tutorial here:

  http://lwn.net/Articles/339361/

There's also http://perf.wiki.kernel.org.

	Ingo

      reply	other threads:[~2009-09-19  8:01 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-17 12:28 performance counter for linux question sebastien cabaniols
2009-09-19  8:01 ` Ingo Molnar [this message]

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=20090919080114.GA7676@elte.hu \
    --to=mingo@elte.hu \
    --cc=a.p.zijlstra@chello.nl \
    --cc=linux-kernel@vger.kernel.org \
    --cc=sebastien.cabaniols@hp.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.