From: Peter Zijlstra <peterz@infradead.org>
To: Lin Ming <ming.m.lin@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>,
Matt Fleming <matt@console-pimps.org>,
"Zhang, Rui" <rui.zhang@intel.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
lkml <linux-kernel@vger.kernel.org>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: Re: [RFC PATCH 2/2] perf stat: Use event group to simulate PMI on PMI-less hardware counter
Date: Wed, 10 Nov 2010 16:08:43 +0100 [thread overview]
Message-ID: <1289401723.2084.0.camel@laptop> (raw)
In-Reply-To: <1289401597.2479.48.camel@localhost>
On Wed, 2010-11-10 at 23:06 +0800, Lin Ming wrote:
> > The proposed idea was to group with a software hrtimer-based event
> > and use the hrtimer's sample to read the hardware group sibling using
> > PERF_SAMPLE_READ.
>
> So this is usefull in perf top/record on PMI-less counter?
Correct, Matt was implementing this.
next prev parent reply other threads:[~2010-11-10 15:08 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-10 6:15 [RFC PATCH 2/2] perf stat: Use event group to simulate PMI on PMI-less hardware counter Lin Ming
2010-11-10 12:21 ` Peter Zijlstra
2010-11-10 14:45 ` Lin Ming
2010-11-10 14:53 ` Peter Zijlstra
2010-11-10 15:06 ` Lin Ming
2010-11-10 15:08 ` Peter Zijlstra [this message]
2010-11-10 15:17 ` Matt Fleming
2010-11-11 2:00 ` Zhang Rui
2010-11-11 12:46 ` Peter Zijlstra
2010-11-12 0:32 ` Zhang Rui
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=1289401723.2084.0.camel@laptop \
--to=peterz@infradead.org \
--cc=acme@redhat.com \
--cc=fweisbec@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=matt@console-pimps.org \
--cc=ming.m.lin@intel.com \
--cc=mingo@elte.hu \
--cc=rui.zhang@intel.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.