From: Peter Zijlstra <peterz@infradead.org>
To: Andi Kleen <ak@linux.intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>,
LKML <linux-kernel@vger.kernel.org>,
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 16:54:32 +0100 [thread overview]
Message-ID: <20140219155432.GN15586@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20140219154036.GX12219@tassilo.jf.intel.com>
On Wed, Feb 19, 2014 at 07:40:36AM -0800, Andi Kleen wrote:
> > > [ 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.
Ah indeed, that is different between snb and ivb.
prev parent reply other threads:[~2014-02-19 15:54 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 ` x86 perf's dTLB-load-misses broken on IvyBridge? II Andi Kleen
2014-02-19 15:54 ` Peter Zijlstra [this message]
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