linux-kernel - Re: [PATCH v3 0/2] tools perf: Add branch speculation info

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Date:   Wed, 1 Feb 2023 22:05:16 -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 0/2] tools perf: Add branch speculation info

Em Mon, Jan 30, 2023 at 11:29:14AM +0530, Sandipan Das escreveu:
> AMD Last Branch Record Extension Version 2 (LbrExtV2) provides branch
> speculation information and the perf UAPI is extended to provide this in
> a generic way. Make perf tool show this additional information.
> 
> The UAPI changes can be found in commit 93315e46b000 ("perf/core: Add
> speculation info to branch entries").
> 
> Previous versions can be found at:
> v2: https://lore.kernel.org/all/cover.1664356751.git.sandipan.das@amd.com/
> v1: https://lore.kernel.org/all/cover.1660217326.git.sandipan.das@amd.com/

Thanks, applied.

- Arnaldo

 
> Changes in v3:
> - Drop tools-side UAPI changes as they have already been added by other
>   commits.
> - Rebase on top of latest perf/core.
> 
> Changes in v2:
> - Drop msr-index.h related changes for now.
> - Rebase on top of latest perf/core.
> - Fix UAPI breakage introduced by the ARM64 BRBE changes to perf branch
>   entry.
> 
> Sandipan Das (2):
>   perf script: Show branch speculation info
>   perf session: Show branch speculation info in raw dump
> 
>  tools/perf/builtin-script.c |  5 +++--
>  tools/perf/util/branch.c    | 15 +++++++++++++++
>  tools/perf/util/branch.h    |  2 ++
>  tools/perf/util/evsel.c     | 15 ++++++++++++---
>  tools/perf/util/session.c   |  5 +++--
>  5 files changed, 35 insertions(+), 7 deletions(-)
> 
> -- 
> 2.34.1
> 

-- 

- Arnaldo