On Mon, Dec 09, 2024 at 03:51:34PM -0800, Yabin Cui wrote:
> On Mon, Dec 9, 2024 at 10:56 AM Will Deacon wrote:
> >
> > (Aside: please try to avoid top-posting on the public lists as it messes up
> > the flow of conversation; I'll try to piece this back together.)
> >
> > On Mon, Dec 09, 2024 at
On Mon, Dec 9, 2024 at 10:56 AM Will Deacon wrote:
>
> (Aside: please try to avoid top-posting on the public lists as it messes up
> the flow of conversation; I'll try to piece this back together.)
>
> On Mon, Dec 09, 2024 at 09:30:50AM -0800, Rong Xu wrote:
> > On Mon, Dec 9, 2024 at 8:20 AM Wil
(Aside: please try to avoid top-posting on the public lists as it messes up
the flow of conversation; I'll try to piece this back together.)
On Mon, Dec 09, 2024 at 09:30:50AM -0800, Rong Xu wrote:
> On Mon, Dec 9, 2024 at 8:20 AM Will Deacon wrote:
> > On Mon, Nov 18, 2024 at 02:25:40PM -0800, Y
Enabling an AutoFDO build requires users to explicitly set CONFIG_AUTOFDO_CLANG.
The support code is in Commit 315ad8780a129e82 (kbuild: Add AutoFDO
support for Clang build).
The CONFIG_AUTOFDO_CLANG config, even if selected by the user, will
not be enabled
unless ARCH_SUPPORTS_AUTOFDO_CLANG is pr
On Mon, Nov 18, 2024 at 02:25:40PM -0800, Yabin Cui wrote:
> Select ARCH_SUPPORTS_AUTOFDO_CLANG to allow AUTOFDO_CLANG to be
> selected.
>
> On ARM64, ETM traces can be recorded and converted to AutoFDO profiles.
> Experiments on Android show 4% improvement in cold app startup time
> and 13% impro
On Mon, Nov 18, 2024 at 02:25:40PM -0800, Yabin Cui wrote:
> Select ARCH_SUPPORTS_AUTOFDO_CLANG to allow AUTOFDO_CLANG to be
> selected.
>
> On ARM64, ETM traces can be recorded and converted to AutoFDO profiles.
> Experiments on Android show 4% improvement in cold app startup time
> and 13% impro
We've used ETM in ChromeOS for a while now. Hardware
requirements make it unfortunately less ubiquitous than LBR, but:
- we first launched it on 5.15,
- it's still humming along nicely today on 6.6, so:
Tested-by: George Burgess IV
IIRC, with a baseline of "using x86_64 AFDO profiles on ARM kern
Add George from ChromeOS.
On Mon, Nov 18, 2024 at 3:49 PM Rong Xu wrote:
>
> This patch looks good to me.
>
> I assume the profile format change in the Android doc will be submitted soon.
> Since "extbinary" is a superset of "binary", using the "extbinary"
> format profile
> in Android shouldn't
This patch looks good to me.
I assume the profile format change in the Android doc will be submitted soon.
Since "extbinary" is a superset of "binary", using the "extbinary"
format profile
in Android shouldn't cause any compatibility issues.
Reviewed-by: Rong Xu
-Rong
On Mon, Nov 18, 2024 at 2
