Performance fixes for GdkPixbuf conversions and QueueDraw calls (SRU)

[Łukasz Zemczak]

[Test Case]
Performance fix - only way of testing is performing the benchmarking steps again to check if there is improvement.

[Regression Potential]
Probably only broken scrolling in nux 'widgets'.

Original description:

This bug has been added to keep track of 2 performance fixes that we would like having merged into lp:nux/2.0 for an upcoming precise Nux SRU.

The commits that have been mentioned:
http://bazaar.launchpad.net/~unity-team/nux/trunk/revision/618
http://bazaar.launchpad.net/~unity-team/nux/trunk/revision/631

[Brian Murray (brian-murray)]

Hello Łukasz, or anyone else affected,

Accepted nux into precise-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/nux/2.14.0-0ubuntu1 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 change the bug tag from verification-needed to verification-done. If it does not, 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!

[Adam Conrad (adconrad)]

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.

[Launchpad Janitor (janitor)]

This bug was fixed in the package nux - 2.14.0-0ubuntu1

---------------
nux (2.14.0-0ubuntu1) precise-proposed; urgency=low

  * New upstream release.
    - QueueDraw is very expensive (LP: #994884)
    - Unity is slow and pausing occasionally (when its DrawList size spikes,
      to almost 6000!) (LP: #1014610)
    - Conditional jump or move depends on uninitialised value(s)
      nux::GraphicsDisplay::ProcessXEvent(_XEvent, bool)
      (GraphicsDisplayX11.cpp:1702) (LP: #983321)
    - Performance fixes for GdkPixbuf conversions and QueueDraw calls (SRU)
      (LP: #1028020)
 -- Lukasz 'sil2100' Zemczak <email address hidden> Thu, 26 Jul 2012 19:02:11 +0200