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From:   Bill Wendling <morbo@google.com>
Date:   Wed, 29 Jun 2022 12:48:31 -0700
Message-ID: <CAGG=3QVNid_s5QFCtPF1hVChsm89hax=KuHTt8Z=huP+CV_edQ@mail.gmail.com>
Subject: Re: plumbers session on profiling?
To:     "Jose E. Marchesi" <jemarch@gnu.org>
Cc:     Ruud van der Pas <ruud.vanderpas@oracle.com>,
        Nick Desaulniers <ndesaulniers@google.com>,
        Sami Tolvanen <samitolvanen@google.com>,
        Vladimir Mezentsev <vladimir.mezentsev@oracle.com>,
        clang-built-linux <llvm@lists.linux.dev>,
        LKML <linux-kernel@vger.kernel.org>, Yonghong Song <yhs@fb.com>,
        Wenlei He <wenlei@fb.com>, Hongtao Yu <hoy@fb.com>,
        Ingo Molnar <mingo@kernel.org>,
        linux-toolchains <linux-toolchains@vger.kernel.org>,
        elena.zannoni@oracle.com
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I have experience in this area with our internal production kernel.

-bw

On Wed, Jun 29, 2022 at 2:00 AM Jose E. Marchesi <jemarch@gnu.org> wrote:
>
>
> [Added linux-toolchains@vger in CC]
>
> It would be interesting to have some discussion in the Toolchains track
> on building the kernel with PGO/FDO.  I have seen a raise on interest on
> the topic in several companies, but it would make very little sense if
> no kernel hacker is interested in participating... anybody?
>
> > Hi Nick,
> >
> > Apologies for the delay. It's been a busy week with gprofng related work.
> >
> >> If you're still considering attending Linux Plumbers conf, please
> >> submit a proposal:
> >> https://lpc.events/event/16/abstracts/
> >> Please make sure to select "Toolchains Track" as the "Track" after
> >> clicking on "Submit new abstract."
> >
> > Thanks for asking!
> >
> > Our presence largely depends on a discussion on kernel profiling and
> > to see what we might be able to do with gprofng regarding this.
> >
> >>From our side, the main person will be Vladimir. He knows the code
> > inside and out, but I will also try to attend such a session.
> >
> > Is there any news regarding such a session on kernel profiling?
> >
> > Kind regards, Ruud
> >
> >>
> >>>
> >>> Kind regards, Ruud
> >>>
> >>>> On 24 May 2022, at 12:24, Jose E. Marchesi <jemarch@gnu.org> wrote:
> >>>>
> >>>>
> >>>> I am adding Ruud van der Pas in CC. He works in gprofng and would be
> >>>> willing to participate in a discussion on kernel profiling.
> >>>>
> >>>>> (Re-sending with Vladamir's email addr fixed; sorry for the noise)
> >>>>>
> >>>>> On Fri, Apr 15, 2022 at 10:54 AM Nick Desaulniers
> >>>>> <ndesaulniers@google.com> wrote:
> >>>>>>
> >>>>>> Hi Sami, Bill, Jose, and Vladamir,
> >>>>>> Jose and I are currently in the planning process to put together a
> >>>>>> Kernel+Toolchain microconference track at Linux Plumbers Conference
> >>>>>> this year (Sept 12-14) in Dublin, Ireland.
> >>>>>>
> >>>>>> Would you all be interested in leading a session discussing various
> >>>>>> profiling related topics such as:
> >>>>>> * gprofng
> >>>>>> * PGO
> >>>>>> * AutoFDO
> >>>>>>
> >>>>>> Would others find such a discussion useful?
> >>>>>> --
> >>>>>> Thanks,
> >>>>>> ~Nick Desaulniers
> >>>
> >>
> >>
> >> --
> >> Thanks,
> >> ~Nick Desaulniers