linux-kernel - Re: [PATCH v3 0/4] Add tracer tool for AMD P-State driver

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Date:   Wed, 9 Mar 2022 21:31:49 +0800
From:   Huang Rui <ray.huang@....com>
To:     "Su, Jinzhou (Joe)" <Jinzhou.Su@....com>
Cc:     "rjw@...ysocki.net" <rjw@...ysocki.net>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "srinivas.pandruvada@...ux.intel.com" 
        <srinivas.pandruvada@...ux.intel.com>,
        "dsmythies@...us.net" <dsmythies@...us.net>,
        "viresh.kumar@...aro.org" <viresh.kumar@...aro.org>,
        "todd.e.brandt@...ux.intel.com" <todd.e.brandt@...ux.intel.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Sharma, Deepak" <Deepak.Sharma@....com>,
        "Deucher, Alexander" <Alexander.Deucher@....com>,
        "Du, Xiaojian" <Xiaojian.Du@....com>,
        "Yuan, Perry" <Perry.Yuan@....com>,
        "Meng, Li (Jassmine)" <Li.Meng@....com>
Subject: Re: [PATCH v3 0/4] Add tracer tool for AMD P-State driver

On Wed, Mar 09, 2022 at 09:23:47AM +0800, Su, Jinzhou (Joe) wrote:
> Hello,
> 
> intel_pstate_tracer is a useful tool to analyze the performance of
> intel_pstate driver. We upstream out AMD P-state driver into Linux
> kernel recently and like to use similar tool to tune the performance
> of the driver.
> 
> I modified intel_pstate_tracer.py then it could import as a module to
> analyze AMD P-State trace event. Other trace event also can benifit from
> this change once they need this tool.
> 
> intel_pstate_tracer could be used as the same way as before and the
> original functionality isn't broken.
> 
> Changes from V2->V3
> 
> -fix typo in amd-pstate RST
> 
> Changes from V1->V2
> 
> -Add tracer documentation in amd-pstate RST
> 
> -fix typo in amd_pstate_trace.py
> 
> -add "Co-developed-by" in patch 1/4
> 
> Thanks,
> Joe
> 
> Jinzhou Su (4):
>   cpufreq: amd-pstate: Add more tracepoint for AMD P-State module
>   tools/power/x86/intel_pstate_tracer: make tracer as a module
>   tools/power/x86/amd_pstate_tracer: Add tracer tool for AMD P-state
>   Documentation: amd-pstate: add tracer tool introduction

Series are Reviewed-by: Huang Rui <ray.huang@....com>

> 
>  Documentation/admin-guide/pm/amd-pstate.rst   |  26 ++
>  MAINTAINERS                                   |   1 +
>  drivers/cpufreq/amd-pstate-trace.h            |  22 +-
>  drivers/cpufreq/amd-pstate.c                  |  59 ++-
>  .../x86/amd_pstate_tracer/amd_pstate_trace.py | 354 ++++++++++++++++++
>  .../intel_pstate_tracer.py                    | 260 +++++++------
>  6 files changed, 588 insertions(+), 134 deletions(-)
>  create mode 100755 tools/power/x86/amd_pstate_tracer/amd_pstate_trace.py
> 
> -- 
> 2.27.0
>