Friday, October 10, 2008

Firefox PGO Details

According to the build output:
  • 2938 objects are created
  • 2246 of the 2938 objects are created with pgo optimizations
  • 2101 of the 2246 objects are optimized for size
  • 145 of the 2246 objects are optimized for speed
  • 73 objects are optimized with profile data
  • 69 of 73 objects didn't have any profile data to optimize with
  • 49 of 73 objects are tests objects
In the end only 4 objects are optimized.

Merging ..\..\dist\bin\js3250!1.pgc
882 of 2904 ( 30.37%) profiled functions will be compiled for speed

Merging ..\..\dist\bin\xul!1.pgc
3433 of 84021 ( 4.09%) profiled functions will be compiled for speed

Merging ..\..\dist\bin\xpcom!1.pgc
55 of 55 (100.00%) profiled functions will be compiled for speed

Merging ..\..\dist\bin\firefox!1.pgc
61 of 61 (100.00%) profiled functions will be compiled for speed

1 comment:

Unknown said...

Wow, can't wait to talk to you about all these numbers. This is really interesting stuff.