Regarding PGO benefits for Firefox, there is a thread: https://groups.google.com/g/mozilla.dev.platform/c/wwO48xXFx0A/m/ztg4i0DYAAAJ that shows measurable improvements from PGO.
Anyway, since the issue is quite old. Is PGO still disabled for Firefox in Ubuntu repositories? Maybe things have changed during these years... -- 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 XULRunner: 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 -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
