From: David Wragg <david@wragg.org>
To: Namhyung Kim <namhyung.kim@lge.com>
Cc: linux-perf-users@vger.kernel.org
Subject: Re: LLC-* events not working on sandybridge
Date: Mon, 30 Apr 2012 18:50:39 +0100 [thread overview]
Message-ID: <sa7k40xf6s0.fsf@wragg.org> (raw)
In-Reply-To: <87ehr5sj8p.fsf@sejong.aot.lge.com> (Namhyung Kim's message of "Mon, 30 Apr 2012 17:43:02 +0900")
Namhyung Kim <namhyung.kim@lge.com> writes:
> On Sun, 29 Apr 2012 00:03:14 +0100, David Wragg wrote:
>> I've run into a problem with perf on an Intel Sandybridge machine: The
>> LLC-* events never seem to trigger.
>> [...]
>
> I have a same problem on my i7-3930K machine. I guess it's because of
> lacking of extra register (MSP_OFFCORE_RSP_X) settings. But I have no
> idea of how I can set it properly :(.
Ok, I've done some further digging around, and it doesn't look like the
patch "perf events, x86: Implement Sandybridge last-level cache events"
at <https://lkml.org/lkml/2011/5/9/80> ever got merged. It's not clear
why.
David
next prev parent reply other threads:[~2012-04-30 17:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-28 23:03 LLC-* events not working on sandybridge David Wragg
2012-04-30 8:43 ` Namhyung Kim
2012-04-30 17:50 ` David Wragg [this message]
2012-05-02 0:53 ` Namhyung Kim
2012-05-05 23:48 ` David Wragg
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=sa7k40xf6s0.fsf@wragg.org \
--to=david@wragg.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=namhyung.kim@lge.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