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[Bug 382017] [NEW] xorg intel driver 2.7.99 36% slower than 2.7.0 on i845

 

Public bug reported:

Binary package hint: xorg

GtkPerf from Synaptic measures several video performance
characteristics.  Results with Karmic Alpha 1 on i845 video on IBM
ThinkCentre and i830 video on IBM Thinkpad R31 significant performance
slowdown of driver 2.7.99 vs. 2.7.0, and for that matter VESA:

i845 2.7.99 42 seconds vs. 2.7.0 31 seconds, 2.799 being 36% slower
i830 2.7.99 65 seconds vs. 2.7.0 35 seconds, 2.7.99 being 90% slower

i845 2.7.99 42 seconds vs. VESA 27 seconds, 2.7.99 being 58% slower

Attached should be ubuntu-bug -p xorg data from the ThinkCentre i845

Also attached spreadsheet with details on which performance measures
were worst

Linux version 2.6.30-5-generic (buildd@rothera) (gcc version 4.4.1
(Ubuntu 4.4.0-3ubuntu3) ) #6-Ubuntu SMP Mon May 11 19:56:30 UTC 2009

2.7.0 came with the Alternate CD.  2.7.99 was installed from "Edgers" as
described in the Ubuntu Forums Intel Peformance Guidelines.

ProblemType: Bug
Architecture: i386
Date: Sat May 30 20:30:30 2009
DistroRelease: Ubuntu 9.10
Package: xorg 1:7.4~5ubuntu20
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.30-5.6-generic
RelatedPackageVersions:
 xserver-xorg 1:7.4~5ubuntu20
 libgl1-mesa-glx 7.5.0~git20090523+mesa-7-5-branch.1045481d-0ubuntu0sarvatt
 libdrm2 2.4.11+git20090519.f355ad89-0ubuntu0sarvatt~jaunty
 xserver-xorg-video-intel 2:2.7.99.1+git20090526.r1.8e942b70-0ubuntu0sarvatt~jaunty
 xserver-xorg-video-ati 1:6.12.99+git20090527.b34df233-0ubuntu0sarvatt~jaunty
SourcePackage: xorg
Uname: Linux 2.6.30-5-generic i686
system:
 distro:             Ubuntu
 architecture:       i686kernel:             2.6.30-5-generic

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386

-- 
xorg intel driver 2.7.99 36% slower than 2.7.0 on i845
https://bugs.launchpad.net/bugs/382017
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