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 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.