From: Stephane Eranian <eranian@google.com>
To: Arun Sharma <asharma@fb.com>
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org,
mingo@elte.hu, acme@infradead.org, robert.richter@amd.com,
ming.m.lin@intel.com, andi@firstfloor.org, ravitillo@lbl.gov,
vweaver1@eecs.utk.edu
Subject: Re: [PATCH 11/13] perf: add code to support PERF_SAMPLE_BRANCH_STACK (v3)
Date: Tue, 10 Jan 2012 16:43:29 +0100 [thread overview]
Message-ID: <CABPqkBRXK7QH9hOaFkCGt0u0Cauf0HLz+oAt72BWs5yZU66wgw@mail.gmail.com> (raw)
In-Reply-To: <4F0B9374.5010207@fb.com>
On Tue, Jan 10, 2012 at 2:25 AM, Arun Sharma <asharma@fb.com> wrote:
> On 1/9/12 8:49 AM, Stephane Eranian wrote:
>>
>> From: Roberto Agostino Vitillo<ravitillo@lbl.gov>
>>
>> This patch adds:
>> - ability to parse samples with PERF_SAMPLE_BRANCH_STACK
>> - sort on branches
>> - build histograms on branches
>>
> [..]
>>
>> static struct sort_dimension sort_dimensions[] = {
>> - { .name = "pid", .entry =&sort_thread, },
>> - { .name = "comm", .entry =&sort_comm, },
>> - { .name = "dso", .entry =&sort_dso, },
>> - { .name = "symbol", .entry =&sort_sym, },
>> - { .name = "parent", .entry =&sort_parent, },
>> - { .name = "cpu", .entry =&sort_cpu, },
>> + { .name = "pid", .entry =&sort_thread, },
>> + { .name = "comm", .entry =&sort_comm, },
>> + { .name = "dso", .entry =&sort_dso, },
>> + { .name = "dso_from", .entry =&sort_dso_from,.taken = true },
>> + { .name = "dso_to", .entry =&sort_dso_to, .taken = true },
>> + { .name = "symbol", .entry =&sort_sym, },
>> + { .name = "symbol_from",.entry =&sort_sym_from,.taken = true },
>> + { .name = "symbol_to", .entry =&sort_sym_to, .taken = true },
>> + { .name = "parent", .entry =&sort_parent, },
>> + { .name = "cpu", .entry =&sort_cpu, },
>>
>> + { .name = "mispredict", .entry =&sort_mispredict, },
>> };
>
>
> The new sort dimensions don't seem to show up in perf report -h. Could you
> please update the help text?
>
Can do this with the understanding that those are only avail when you
use branch sampling.
> Also:
>
> # perf script -h
>
> -f, --fields <str> comma separated output fields prepend with 'type:'.
> Valid types: hw,sw,trace,raw. Fields:
> comm,tid,pid,time,cpu,event,trace,ip,sym,dso,addr
>
> You probably want to add a field here, so I could:
>
> perf record -b any_call,u -e cycles:u
> perf script -f event,branch_stack
>
> and examine raw (symbolized) samples like I can with
>
> perf record -g
> perf script -f event,ip,sym
>
Ok, I'll look into this. Looks like a useful command for automating processing.
> -Arun
>
next prev parent reply other threads:[~2012-01-10 15:43 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-09 16:49 [PATCH 00/13] perf_events: add support for sampling taken branches (v3) Stephane Eranian
2012-01-09 16:49 ` [PATCH 01/13] perf_events: add generic taken branch sampling support (v3) Stephane Eranian
2012-01-27 4:46 ` Anshuman Khandual
2012-01-27 9:57 ` Stephane Eranian
2012-01-09 16:49 ` [PATCH 02/13] perf_events: add Intel LBR MSR definitions (v3) Stephane Eranian
2012-01-27 5:03 ` Anshuman Khandual
2012-01-09 16:49 ` [PATCH 03/13] perf_events: add Intel X86 LBR sharing logic (v3) Stephane Eranian
2012-01-09 16:49 ` [PATCH 04/13] perf_events: sync branch stack sampling with X86 precise_sampling (v3) Stephane Eranian
2012-01-27 5:26 ` Anshuman Khandual
2012-01-09 16:49 ` [PATCH 05/13] perf_events: add LBR mappings for PERF_SAMPLE_BRANCH filters (v3) Stephane Eranian
2012-01-27 5:41 ` Anshuman Khandual
2012-01-09 16:49 ` [PATCH 06/13] perf_events: disable LBR support for older Intel Atom processors (v3) Stephane Eranian
2012-01-27 5:43 ` Anshuman Khandual
2012-01-09 16:49 ` [PATCH 07/13] perf_events: implement PERF_SAMPLE_BRANCH for Intel X86 (v3) Stephane Eranian
2012-01-27 6:14 ` Anshuman Khandual
2012-01-09 16:49 ` [PATCH 08/13] perf_events: add LBR software filter support " Stephane Eranian
2012-01-09 16:49 ` [PATCH 09/13] perf_events: disable PERF_SAMPLE_BRANCH_* when not supported (v3) Stephane Eranian
2012-01-27 7:15 ` Anshuman Khandual
2012-01-27 9:56 ` Stephane Eranian
2012-01-09 16:49 ` [PATCH 10/13] perf_events: add hook to flush branch_stack on context switch (v3) Stephane Eranian
2012-01-09 16:49 ` [PATCH 11/13] perf: add code to support PERF_SAMPLE_BRANCH_STACK (v3) Stephane Eranian
2012-01-10 1:25 ` Arun Sharma
2012-01-10 15:43 ` Stephane Eranian [this message]
2012-01-09 16:49 ` [PATCH 12/13] perf: add support for sampling taken branch to perf record (v3) Stephane Eranian
2012-01-09 16:49 ` [PATCH 13/13] perf: add support for taken branch sampling to perf report (v3) Stephane Eranian
2012-01-23 10:14 ` [PATCH 00/13] perf_events: add support for sampling taken branches (v3) Stephane Eranian
2012-01-23 12:25 ` Peter Zijlstra
2012-01-23 15:07 ` Stephane Eranian
2012-01-23 15:47 ` Andi Kleen
2012-01-23 17:14 ` Stephane Eranian
2012-01-24 15:39 ` Stephane Eranian
2012-01-24 16:08 ` David Ahern
2012-01-24 17:42 ` Stephane Eranian
2012-01-26 16:21 ` Stephane Eranian
2012-01-27 12:09 ` Peter Zijlstra
2012-01-27 18:20 ` Arun Sharma
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