On Fri, Jan 22, 2021 at 2:34 AM Nick Desaulniers
wrote:
>
> On Wed, Jan 20, 2021 at 6:21 PM Sedat Dilek wrote:
> >
> > Hi,
> >
> > When I looked through the code I wondered why we do not add a
> > "CONFIG_PGO_CLANG_PROFDATA" which can be helpful when doing the PGO
> > rebuild with a vmlinux.profd
On Wed, Jan 20, 2021 at 6:21 PM Sedat Dilek wrote:
>
> Hi,
>
> When I looked through the code I wondered why we do not add a
> "CONFIG_PGO_CLANG_PROFDATA" which can be helpful when doing the PGO
> rebuild with a vmlinux.profdata.
>
> This introduces a "PGO_PROFDATA" to turn on/off to pass
> "-fpro
Hi,
When I looked through the code I wondered why we do not add a
"CONFIG_PGO_CLANG_PROFDATA" which can be helpful when doing the PGO
rebuild with a vmlinux.profdata.
This introduces a "PGO_PROFDATA" to turn on/off to pass
"-fprofile-use=vmlinux.profdata" (see CFLAGS_PGO_CLANG_PROFDATA in
top-lev
On Mon, Jan 11, 2021 at 4:38 PM Bill Wendling wrote:
>
> On Mon, Jan 11, 2021 at 12:31 PM Fangrui Song wrote:
> > On 2021-01-11, Bill Wendling wrote:
> > >On Mon, Jan 11, 2021 at 12:12 PM Fangrui Song wrote:
> > >>
> > >> On 2021-01-11, 'Bill Wendling' via Clang Built Linux wrote:
> > >> >From:
On Mon, Jan 11, 2021 at 12:31 PM Fangrui Song wrote:
> On 2021-01-11, Bill Wendling wrote:
> >On Mon, Jan 11, 2021 at 12:12 PM Fangrui Song wrote:
> >>
> >> On 2021-01-11, 'Bill Wendling' via Clang Built Linux wrote:
> >> >From: Sami Tolvanen
> >> >
> >> >Enable the use of clang's Profile-Guided
On Mon, Jan 11, 2021 at 1:18 PM Nick Desaulniers
wrote:
>
> On Mon, Jan 11, 2021 at 1:04 PM Nathan Chancellor
> wrote:
> >
> > On Mon, Jan 11, 2021 at 12:18:21AM -0800, Bill Wendling wrote:
> > > From: Sami Tolvanen
> > >
> > > Enable the use of clang's Profile-Guided Optimization[1]. To generat
On Mon, Jan 11, 2021 at 1:04 PM Nathan Chancellor
wrote:
>
> On Mon, Jan 11, 2021 at 12:18:21AM -0800, Bill Wendling wrote:
> > From: Sami Tolvanen
> >
> > Enable the use of clang's Profile-Guided Optimization[1]. To generate a
> > profile, the kernel is instrumented with PGO counters, a represen
On Mon, Jan 11, 2021 at 12:18:21AM -0800, Bill Wendling wrote:
> From: Sami Tolvanen
>
> Enable the use of clang's Profile-Guided Optimization[1]. To generate a
> profile, the kernel is instrumented with PGO counters, a representative
> workload is run, and the raw profile data is collected from
On 2021-01-11, Bill Wendling wrote:
On Mon, Jan 11, 2021 at 12:12 PM Fangrui Song wrote:
On 2021-01-11, 'Bill Wendling' via Clang Built Linux wrote:
>From: Sami Tolvanen
>
>Enable the use of clang's Profile-Guided Optimization[1]. To generate a
>profile, the kernel is instrumented with PGO co
On Mon, Jan 11, 2021 at 12:12 PM Fangrui Song wrote:
>
> On 2021-01-11, 'Bill Wendling' via Clang Built Linux wrote:
> >From: Sami Tolvanen
> >
> >Enable the use of clang's Profile-Guided Optimization[1]. To generate a
> >profile, the kernel is instrumented with PGO counters, a representative
> >
On 2021-01-11, 'Bill Wendling' via Clang Built Linux wrote:
From: Sami Tolvanen
Enable the use of clang's Profile-Guided Optimization[1]. To generate a
profile, the kernel is instrumented with PGO counters, a representative
workload is run, and the raw profile data is collected from
/sys/kernel
On Mon, Jan 11, 2021 at 10:57:35AM +0100, Sedat Dilek wrote:
> On Mon, Jan 11, 2021 at 10:17 AM Bill Wendling wrote:
> >
> > On Mon, Jan 11, 2021 at 12:39 AM Sedat Dilek wrote:
> > >
> > > On Mon, Jan 11, 2021 at 9:18 AM 'Bill Wendling' via Clang Built Linux
> > > wrote:
> > > >
> > > > From: Sa
On Mon, Jan 11, 2021 at 10:17 AM Bill Wendling wrote:
>
> On Mon, Jan 11, 2021 at 12:39 AM Sedat Dilek wrote:
> >
> > On Mon, Jan 11, 2021 at 9:18 AM 'Bill Wendling' via Clang Built Linux
> > wrote:
> > >
> > > From: Sami Tolvanen
> > >
> > > Enable the use of clang's Profile-Guided Optimizatio
On Mon, Jan 11, 2021 at 12:39 AM Sedat Dilek wrote:
>
> On Mon, Jan 11, 2021 at 9:18 AM 'Bill Wendling' via Clang Built Linux
> wrote:
> >
> > From: Sami Tolvanen
> >
> > Enable the use of clang's Profile-Guided Optimization[1]. To generate a
> > profile, the kernel is instrumented with PGO coun
On Mon, Jan 11, 2021 at 9:39 AM Sedat Dilek wrote:
>
> On Mon, Jan 11, 2021 at 9:18 AM 'Bill Wendling' via Clang Built Linux
> wrote:
> >
> > From: Sami Tolvanen
> >
> > Enable the use of clang's Profile-Guided Optimization[1]. To generate a
> > profile, the kernel is instrumented with PGO count
On Mon, Jan 11, 2021 at 9:18 AM 'Bill Wendling' via Clang Built Linux
wrote:
>
> From: Sami Tolvanen
>
> Enable the use of clang's Profile-Guided Optimization[1]. To generate a
> profile, the kernel is instrumented with PGO counters, a representative
> workload is run, and the raw profile data is
From: Sami Tolvanen
Enable the use of clang's Profile-Guided Optimization[1]. To generate a
profile, the kernel is instrumented with PGO counters, a representative
workload is run, and the raw profile data is collected from
/sys/kernel/debug/pgo/profraw.
The raw profile data must be processed by
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