linux-kernel - Re: [PATCH v3 1/2] perf script: Show branch speculation info

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Date:   Wed, 1 Feb 2023 23:37:56 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Sandipan Das <sandipan.das@....com>
Cc:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        x86@...nel.org, peterz@...radead.org, bp@...en8.de,
        namhyung@...nel.org, jolsa@...nel.org, tglx@...utronix.de,
        mingo@...hat.com, mark.rutland@....com,
        alexander.shishkin@...ux.intel.com, dave.hansen@...ux.intel.com,
        james.clark@....com, irogers@...gle.com, eranian@...gle.com,
        ananth.narayan@....com, ravi.bangoria@....com,
        santosh.shukla@....com
Subject: Re: [PATCH v3 1/2] perf script: Show branch speculation info

Em Wed, Feb 01, 2023 at 11:34:46PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Wed, Feb 01, 2023 at 10:13:03PM -0300, Arnaldo Carvalho de Melo escreveu:
> > Em Mon, Jan 30, 2023 at 05:09:10PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > Em Mon, Jan 30, 2023 at 04:04:58PM +0530, Sandipan Das escreveu:
> > > > Sorry but I realized later that this change breaks the builtin branch test.
> > > > The additional change below fixes that.
> > > 
> > > Please wait a bit for people to be able to review the other patches and
> > > then submit a v2 series.
> > 
> > So I applied it manually, no need to send v2.
> 
> Please send v2 after figuring out why 'perf test "Sample parsing"'
> fails,
> 
> I removed both patches for now.

Triple checking:

[acme@...co perf]$ git log --oneline -1
24a617c84f0da540 (HEAD -> perf/core) perf session: Show branch speculation info in raw dump
[acme@...co perf]$ perf -v
perf version 6.2.rc5.g24a617c84f0d
[acme@...co perf]$ perf test "Sample testing"
[acme@...co perf]$ perf test "Sample parsing"
 27: Sample parsing                                                  : FAILED!
 80: x86 Sample parsing                                              : Ok
[acme@...co perf]$ git reset --hard HEAD~
HEAD is now at 1fad7c0ae6516706 perf script: Show branch speculation info

[acme@...co perf]$ git log --oneline -1
1fad7c0ae6516706 (HEAD -> perf/core) perf script: Show branch speculation info
[acme@...co perf]$ perf -v
perf version 6.2.rc5.g1fad7c0ae651
[acme@...co perf]$ perf test 27
 27: Sample parsing                                                  : FAILED!
[acme@...co perf]$ git reset --hard HEAD~
HEAD is now at d4a6f399c89520ba perf bench syscall: Add execve syscall benchmark
[acme@...co perf]$

[acme@...co perf]$ git log --oneline -1
d4a6f399c89520ba (HEAD -> perf/core, five/perf/core) perf bench syscall: Add execve syscall benchmark
[acme@...co perf]$ perf -v
perf version 6.2.rc5.gd4a6f399c895
[acme@...co perf]$ perf test 27
 27: Sample parsing                                                  : Ok
[acme@...co perf]$

- Arnaldo