From: Andi Kleen <ak@linux.intel.com>
To: Dave Hansen <dave.hansen@linux.intel.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Subject: Re: x86 perf's dTLB-load-misses broken on IvyBridge? II
Date: Wed, 19 Feb 2014 07:40:36 -0800 [thread overview]
Message-ID: <20140219154036.GX12219@tassilo.jf.intel.com> (raw)
In-Reply-To: <5303E8BF.9030107@linux.intel.com>
> > [ C(DTLB) ] = {
> > [ C(OP_READ) ] = {
> > [ C(RESULT_ACCESS) ] = 0x81d0, /* MEM_UOP_RETIRED.ALL_LOADS */
> > [ C(RESULT_MISS) ] = 0x0108, /* DTLB_LOAD_MISSES.CAUSES_A_WALK */
> > },
Actually I tested on the wrong system earlier, sorry The miss event code
is wrong on IvyBridge, it should be 0x8108 (DTLB_LOAD_MISSES.DEMAND_LD_MISS_CAUSES_A_WALK),
not 0x0108.
BTW that event only counts demand loads, no prefetches, that would be a separate event.
dTLB-loads works with and without PEBS.
-Andi
next prev parent reply other threads:[~2014-02-19 15:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-18 23:11 x86 perf's dTLB-load-misses broken on IvyBridge? Dave Hansen
2014-02-19 8:43 ` Peter Zijlstra
2014-02-19 15:23 ` Andi Kleen
2014-02-19 15:40 ` Andi Kleen [this message]
2014-02-19 15:54 ` x86 perf's dTLB-load-misses broken on IvyBridge? II Peter Zijlstra
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=20140219154036.GX12219@tassilo.jf.intel.com \
--to=ak@linux.intel.com \
--cc=a.p.zijlstra@chello.nl \
--cc=acme@ghostprotocols.net \
--cc=dave.hansen@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.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
Powered by JetHome