From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
Cc: Will Deacon <will.deacon@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"mingo@elte.hu" <mingo@elte.hu>,
"acme@redhat.com" <acme@redhat.com>,
"ming.m.lin@intel.com" <ming.m.lin@intel.com>,
"andi@firstfloor.org" <andi@firstfloor.org>,
"robert.richter@amd.com" <robert.richter@amd.com>,
"ravitillo@lbl.gov" <ravitillo@lbl.gov>,
"paulus@samba.org" <paulus@samba.org>,
"benh@kernel.crashing.org" <benh@kernel.crashing.org>,
"rth@twiddle.net" <rth@twiddle.net>,
"ralf@linux-mips.org" <ralf@linux-mips.org>,
"davem@davemloft.net" <davem@davemloft.net>,
"lethal@linux-sh.org" <lethal@linux-sh.org>
Subject: Re: [PATCH 00/12] perf_events: add support for sampling taken branches (v2)
Date: Tue, 06 Dec 2011 20:20:15 +0100 [thread overview]
Message-ID: <1323199215.32012.87.camel@twins> (raw)
In-Reply-To: <CABPqkBQq=ra+-O==qT+8DtFZ5T7=M4yJrnPJ_bb+UmUTGGQepQ@mail.gmail.com>
On Tue, 2011-12-06 at 11:14 -0800, Stephane Eranian wrote:
> >> > Other than the few comments given it all looks good. My main worry is
> >> > the Intel only aspect, I'd really love for there to be another platform
> >> > that could implement at least part of this.
> There is a hardware branch buffer on all Itanium processors.
> You can find the description for the McKinley implementation
> (Itanium2) branch buffer in section 10.3.9 from:
> http://download.intel.com/design/Itanium2/manuals/25111003.pdf
Yeah, I knew Itanic has it, but one its sinking (and doesn't have perf
support), and two its still Intel ;-)
next prev parent reply other threads:[~2011-12-06 19:21 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-14 12:37 [PATCH 00/12] perf_events: add support for sampling taken branches (v2) Stephane Eranian
2011-10-14 12:37 ` [PATCH 01/12] perf_events: add generic taken branch sampling support (v2) Stephane Eranian
2011-12-05 21:06 ` Peter Zijlstra
2011-12-06 19:42 ` Stephane Eranian
2011-12-05 22:14 ` Peter Zijlstra
2011-12-06 19:27 ` Stephane Eranian
2011-10-14 12:37 ` [PATCH 02/12] perf_events: add Intel LBR MSR definitions (v2) Stephane Eranian
2011-10-14 12:37 ` [PATCH 03/12] perf_events: add Intel X86 LBR sharing logic (v2) Stephane Eranian
2011-10-14 12:37 ` [PATCH 04/12] perf_events: sync branch stack sampling with X86 precise_sampling (v2) Stephane Eranian
2011-10-14 12:37 ` [PATCH 05/12] perf_events: add LBR mappings for PERF_SAMPLE_BRANCH filters (v2) Stephane Eranian
2011-12-05 22:35 ` Peter Zijlstra
2011-12-07 4:22 ` Stephane Eranian
2011-10-14 12:37 ` [PATCH 06/12] perf_events: implement PERF_SAMPLE_BRANCH for Intel X86 (v2) Stephane Eranian
2011-10-14 12:37 ` [PATCH 07/12] perf_events: add LBR software filter support " Stephane Eranian
2011-12-05 22:29 ` Peter Zijlstra
2011-10-14 12:37 ` [PATCH 08/12] perf_events: disable PERF_SAMPLE_BRANCH_* when not supported (v2) Stephane Eranian
2011-10-14 12:37 ` [PATCH 09/12] perf_events: add hook to flush branch_stack on context switch (v2) Stephane Eranian
2011-12-05 21:10 ` Peter Zijlstra
2011-12-05 21:37 ` Peter Zijlstra
2011-12-07 18:25 ` Stephane Eranian
2011-12-08 10:49 ` Peter Zijlstra
2011-12-08 18:04 ` Stephane Eranian
2011-12-08 18:13 ` Peter Zijlstra
2011-12-08 22:06 ` Stephane Eranian
2011-12-09 9:00 ` Peter Zijlstra
2011-10-14 12:37 ` [PATCH 10/12] perf: add code to support PERF_SAMPLE_BRANCH_STACK (v2) Stephane Eranian
2011-10-14 12:37 ` [PATCH 11/12] perf: add support for sampling taken branch to perf record (v2) Stephane Eranian
2011-10-14 12:37 ` [PATCH 12/12] perf: add support for taken branch sampling to perf report (v2) Stephane Eranian
2011-12-04 20:11 ` [PATCH 00/12] perf_events: add support for sampling taken branches (v2) Stephane Eranian
2011-12-05 15:27 ` Peter Zijlstra
2011-12-05 22:39 ` Peter Zijlstra
2011-12-06 9:49 ` Will Deacon
2011-12-06 11:03 ` Peter Zijlstra
2011-12-06 19:14 ` Stephane Eranian
2011-12-06 19:20 ` Peter Zijlstra [this message]
2011-12-06 19:22 ` Stephane Eranian
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