** Description changed: I noticed bad performance regression with xorg-server 1.5.2 (intrepid) against 1.4 (hardy). For the detailed report see here: http://lists.freedesktop.org/archives/xorg/2008-October/039277.html There are two known problems: - 1) Patch to fix slow EXA in 1.5.2: - http://lists.freedesktop.org/archives/xorg/2008-October/039405.html - the fix was included in 1.5.3: - http://lists.freedesktop.org/archives/xorg/2008-November/039956.html + 1) EXA: Avoid excessive syncing in PutImage + Patch to fix slow EXA in 1.5.2: http://gitweb.freedesktop.org/?p=xorg/xserver.git;a=commitdiff;h=f4c33e2e64ce83c29c3bc79853e421247acfea11 + the fix was included in 1.5.3. + Test package of xorg-server 1.5.3~git-1ubuntu0tormod4 can be found at: + https://edge.launchpad.net/~xorg-edgers/+archive - 2) Reading the suggestions from the thread at + See comment #6 for numbers of performance increase with gtkperf. No + regression so far with the 1.5.3~git-1ubuntu0tormod4 package. + + 2) Array-index based devPrivates implementation + Reading the suggestions from the thread at http://lists.freedesktop.org/archives/xorg/2008-October/039277.html this backported patch from 1.6 should fix the performance regression in 1.5: http://cgit.freedesktop.org/xorg/xserver/commit/?h=server-1.5-branch&id=8ef37c194fa08d3911095299413a42a01162b078 This fix was applied to the 1.5 branch but was later reverted. It appears that this fix breaks the ABI (so it's not for intrepid): https://bugs.freedesktop.org/show_bug.cgi?id=16647#c23
** Description changed: I noticed bad performance regression with xorg-server 1.5.2 (intrepid) against 1.4 (hardy). For the detailed report see here: http://lists.freedesktop.org/archives/xorg/2008-October/039277.html There are two known problems: 1) EXA: Avoid excessive syncing in PutImage Patch to fix slow EXA in 1.5.2: http://gitweb.freedesktop.org/?p=xorg/xserver.git;a=commitdiff;h=f4c33e2e64ce83c29c3bc79853e421247acfea11 the fix was included in 1.5.3. Test package of xorg-server 1.5.3~git-1ubuntu0tormod4 can be found at: https://edge.launchpad.net/~xorg-edgers/+archive - See comment #6 for numbers of performance increase with gtkperf. No + See comment 6 for numbers of performance increase with gtkperf. No regression so far with the 1.5.3~git-1ubuntu0tormod4 package. 2) Array-index based devPrivates implementation Reading the suggestions from the thread at http://lists.freedesktop.org/archives/xorg/2008-October/039277.html this backported patch from 1.6 should fix the performance regression in 1.5: http://cgit.freedesktop.org/xorg/xserver/commit/?h=server-1.5-branch&id=8ef37c194fa08d3911095299413a42a01162b078 This fix was applied to the 1.5 branch but was later reverted. It appears that this fix breaks the ABI (so it's not for intrepid): https://bugs.freedesktop.org/show_bug.cgi?id=16647#c23 ** Description changed: I noticed bad performance regression with xorg-server 1.5.2 (intrepid) against 1.4 (hardy). For the detailed report see here: http://lists.freedesktop.org/archives/xorg/2008-October/039277.html There are two known problems: 1) EXA: Avoid excessive syncing in PutImage Patch to fix slow EXA in 1.5.2: http://gitweb.freedesktop.org/?p=xorg/xserver.git;a=commitdiff;h=f4c33e2e64ce83c29c3bc79853e421247acfea11 the fix was included in 1.5.3. Test package of xorg-server 1.5.3~git-1ubuntu0tormod4 can be found at: https://edge.launchpad.net/~xorg-edgers/+archive - See comment 6 for numbers of performance increase with gtkperf. No - regression so far with the 1.5.3~git-1ubuntu0tormod4 package. + See comment #6 (https://bugs.launchpad.net/ubuntu/+source/xorg- + server/+bug/280671/comments/6) for numbers of performance increase with + gtkperf. No regression so far with the 1.5.3~git-1ubuntu0tormod4 + package. 2) Array-index based devPrivates implementation Reading the suggestions from the thread at http://lists.freedesktop.org/archives/xorg/2008-October/039277.html this backported patch from 1.6 should fix the performance regression in 1.5: http://cgit.freedesktop.org/xorg/xserver/commit/?h=server-1.5-branch&id=8ef37c194fa08d3911095299413a42a01162b078 This fix was applied to the 1.5 branch but was later reverted. It appears that this fix breaks the ABI (so it's not for intrepid): https://bugs.freedesktop.org/show_bug.cgi?id=16647#c23 -- [intrepid] 1.4 -> 1.5.2 bad performance regression https://bugs.launchpad.net/bugs/280671 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
