I'm backing this out of quantal. The benchmarks show negligible benefit
of turning on PGO in most tests, and there isn't really any perceivable
difference at all - certainly not enough to justify a 100% increase in
build time
** Also affects: firefox (Ubuntu Quantal)
Importance: Wishlist
Assignee: Chris Coulson (chrisccoulson)
Status: Fix Released
** Also affects: xulrunner-1.9 (Ubuntu Quantal)
Importance: Wishlist
Status: Won't Fix
** Also affects: firefox-3.0 (Ubuntu Quantal)
Importance: Wishlist
Status: Won't Fix
** Also affects: firefox-3.1 (Ubuntu Quantal)
Importance: Wishlist
Status: Won't Fix
** Changed in: firefox (Ubuntu Quantal)
Status: Fix Released => Won't Fix
** Changed in: firefox (Ubuntu)
Status: Fix Released => Triaged
** Changed in: firefox (Ubuntu)
Assignee: Chris Coulson (chrisccoulson) => (unassigned)
** No longer affects: firefox-3.0 (Ubuntu)
** No longer affects: firefox-3.0 (Ubuntu Quantal)
** No longer affects: firefox-3.1 (Ubuntu)
** No longer affects: firefox-3.1 (Ubuntu Quantal)
** No longer affects: xulrunner-1.9 (Ubuntu)
** No longer affects: xulrunner-1.9 (Ubuntu Quantal)
** Changed in: firefox (Ubuntu Quantal)
Assignee: Chris Coulson (chrisccoulson) => (unassigned)
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/213708
Title:
Please compile Firefox with PGO optimizations
Status in XUL + XPCOM application runner:
Fix Released
Status in “firefox” package in Ubuntu:
Triaged
Status in “firefox” source package in Quantal:
Won't Fix
Status in “xulrunner” package in Debian:
New
Status in “firefox-3.0” package in openSUSE:
New
Bug description:
Binary package hint: xulrunner-1.9
I've been using Arch Linux for the last 3 months. Now, I'm back on
Ubuntu because I got tired of configuring. Configuring never ends.
However, for Arch Linux, I made the best Firefox 3 package (
http://aur.archlinux.org/packages.php?ID=15184 ), which includes PGO
optimizations ( http://developer.mozilla.org/en/docs
/Building_with_Profile-Guided_Optimization ).
The Windows version is PGO optimised. People will hate the Ubuntu
version knowing that the Windows version is so much faster. The
official mozilla nightlies are PGO optimised.
This was a test I did on Arch Linux, which is compiled against i686:
Firefox 3 Beta 3 on the left.
Firefox 3 Beta 4 with Profile Guided Optimisations on the right:
http://www.paste2.org/p/15666
This is what I got with this build https://bugs.launchpad.net/gutsy-
backports/+bug/212468
http://tinyurl.com/6fv8aq
7 times slower. I'm not sure how much i686 helps. But, my i686 PGO was
3 times faster than my normal i686.
There are no regressions. It just works.
I've attached how it was compiled and the mozconfig.
To manage notifications about this bug go to:
https://bugs.launchpad.net/xulrunner/+bug/213708/+subscriptions
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