[regression] compiz spends 31% of its CPU time in regexec()

[Daniel van Vugt]

[Test Case]

Performance regression fix, no obvious test case.

[Regression Potential]

Broken unredirect fullscreen windows.

Original description:

[regression] compiz spends 31% of its CPU time in regexec()

[Daniel van Vugt (vanvugt)]

Fix committed into lp:compiz at revision 3533, scheduled for release in Compiz 0.9.9.0
Fix committed into lp:compiz/0.9.8 at revision 3430, scheduled for release in Compiz 0.9.8.8
Fix committed into lp:compiz-core/0.9.7 at revision 3134, scheduled for release in Compiz 0.9.7.14

[Launchpad Janitor (janitor)]

This bug was fixed in the package compiz - 1:0.9.9~daily13.01.14-0ubuntu1

---------------
compiz (1:0.9.9~daily13.01.14-0ubuntu1) raring; urgency=low

  [ sampo555 ]
  * compiz crashed with SIGSEGV in DodgeAnim::applyDodgeTransform() (LP:
    #1048840)
  * compiz crashing if window un-/minimize animation is "Random" (LP:
    #1098185)

  [ Daniel van Vugt ]
  * Several leaks in new GLProgram from compileProgram() from
    GLScreen::getProgram() from GLWindowAutoProgram::getProgram() (LP:
    #1097644)

  [ Sam Spilsbury ]
  * Several leaks in ccsIntegratedSettingListAppend() ... from
    ccsGNOMEIntegrationBackendGetIntegratedSetting() from readSetting
    (gsettings.c:375) (LP: #1097661)

  [ MC Return ]
  * Thumbnail Window Previews: Flickering of background/glow and window
    title text (LP: #1098758)

  [ Automatic PS uploader ]
  * Automatic snapshot from revision 3561
 -- Automatic PS uploader <email address hidden> Mon, 14 Jan 2013 04:03:09 +0000

[Brian Murray (brian-murray)]

Hello Daniel, or anyone else affected,

Accepted compiz into quantal-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/compiz/1:0.9.8.6+bzr3433-0ubuntu1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Steve Langasek (vorlon)]

Hello Daniel, or anyone else affected,

Accepted compiz into precise-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/compiz/1:0.9.7.12-0ubuntu2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Doug McMahon (mc3man)]

compiz_0.9.7.12-0ubuntu2 (12.04.2), used for a couple of days, no regressions

[Tom Louwrier (tom-louwrier)]

Been using this fix for about a week now. The whole GUI is a lot more responsive. It seems to solve a lot of the lag / hangs in accessing menus and especially when working in LO Calc (mainly when changing cell formats in pretty large worksheets with a lot of formulas).
I do still get some hangs within Calc when switching from one sheet to another; either through the menu or through the bar.
Those hangs are always accompanier by intensive disc access. When I check the system monitor there is no or hardly any swap file.

Running 12.04.02 amd64, LO 403ubuntu1-precise on a Dell 131L (AMD cpu and chipset, ATI Radeon Xpress 1150 gpu)

cheers
Tom

[Launchpad Janitor (janitor)]

This bug was fixed in the package compiz - 1:0.9.7.12-0ubuntu2

---------------
compiz (1:0.9.7.12-0ubuntu2) precise; urgency=low

  * debian/patches/fix_1095001.patch
    - Cherry-pick a patch from upstream to fix CPU usage (LP: #1095001)
  * debian/patches/blacklist_precise_mesa80_intel_nouveau.patch:
    - Rename the blacklist patch, add verbose description and allow
      fullscreen unredirection for also Intel and Nouveau users using
      Mesa 9.0.x (Ubuntu 12.04.2 LTS or those who have opted in to LTS-Q
      packages). (LP: #1167321)
 -- Timo Jyrinki <email address hidden> Thu, 11 Apr 2013 12:05:04 +0300

[Colin Watson (cjwatson)]

The verification of this Stable Release Update has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regresssions.

[Bin Li (binli)]

Hi,

 After use compiz with this patch, I found the password dialog won't show in gnome-screensaver after the screen turn off when inactive for sometimes.

The bug #1207639 is caused by this one.

[Daniel van Vugt (vanvugt)]

Bin,

Ubuntu (millions of users) have been using the fix for this bug for almost 9 months without an issue. Whatever you think is causing bug 1207639, it is probably not the fix for this bug.

[Daniel van Vugt (vanvugt)]

Oh. Unless you mean bug 1207639 is caused by the absence of the fix for this bug....

[Bin Li (binli)]

Daniel,

 What I mean is that after I upgrade from 1:0.9.7.12-0ubuntu1 to 1:0.9.7.12-0ubuntu2, I met the issue which password dialog can't show up, you can also input the password, then it will login into the desktop.

 I also find the #1053895 in 0.9.9 might be a fix for our issue.

[Bin Li (binli)]

Daniel,

 I find the the reason, the blacklist_precise_mesa80_intel_nouveau.patch allow 9.0.x Mesa, if I edit the /usr/share/compiz/opengl.xml, and remove the '$', the issue disappeared.

[Daniel van Vugt (vanvugt)]

OK Bin. Could you please log a new bug (if not bug 1207639) and carry on the conversation in the new one?

[Stephen M. Webb (bregma)]

marking as closed (0.9.8 series is obsolete)

[Rolf Leggewie (r0lf)]

quantal has seen the end of its life and is no longer receiving any updates. Marking the quantal task for this ticket as "Won't Fix".