1800714 - Explore PGO for potential performance improvements

Status: RESOLVED WORKSFORME

(Core :: Performance Engineering, task)

Description

[Patricia Lawless]

Explore potential performance gains with PGO on android, macOS, windows, and linux.

Comment 1

[Kelsey Gilbert [:jgilbert]]

Fwiw, Chrome got sizeable speedups (~5%) on motionmark via PGO:
https://bugs.chromium.org/p/chromium/issues/detail?id=1402260

We should investigate something similar for benchmarks we care about.

Comment 2

[Olli Pettay [:smaug][[e-mail]]]

I think Marc has been looking into Android side of this, but Bas, is anyone taking a look into the desktop side?

Comment 3

[Bas Schouten (:bas.schouten)]

(In reply to Olli Pettay [:smaug][[e-mail]] from comment #2)

I think Marc has been looking into Android side of this, but Bas, is anyone taking a look into the desktop side?

Denis did a very basic investigation some time ago and found no real impact. This was before the development of Speedometer 3 though and before a lot of the other improvements to the browser, there's value in doing more investigation here at this point.

Comment 4

[Olli Pettay [:smaug][[e-mail]]]

Various things have been done here. Better pgo for Android and Mac and sp3 as part of the training set.