** Description changed: Binary package hint: xorg I recently upgraded to Maverick and since then the graphics performance of certain 2D programs severely degraded. Especially programs that use wxMathplot with real-time plot updates are affected and show very high CPU on the xorg process and much lower responsiveness of the application. When I run the same program within Xephyr, the CPU load is much less, also when I run it under ms-windows in VirtualBox. I have tried the stable ppa update for xorg-intel, but this didn't make much difference. I have done performance analysis with oprofile (on my own applications that uses 10 wxMathplot plots) and found that the the kernel (55%) and libdrm_intel (15%) are eating most of the CPU time. I created a slightly modified version of sample3 of wxMathplot that shows the CPU impact of 2D operations. Directly under X, CPU usage is as follows: 53% for Xorg and 14% for mpSample3. Under Xephyr, CPU usage is 10% for xorg, 15% for mpSample3 and 11% for Xephyr. I'll attach the source of this modified sample, and if required more of the oprofile log. ProblemType: Bug DistroRelease: Ubuntu 10.10 Package: xorg 1:7.5+6ubuntu3 ProcVersionSignature: Ubuntu 2.6.35-28.49-generic 2.6.35.11 Uname: Linux 2.6.35-28-generic i686 Architecture: i386 DRM.card0.LVDS.1: status: connected enabled: enabled dpms: On modes: 1366x768 edid-base64: AP///////wAGr+wgAAAAAAESAQOAIhN4CldVnFpUnSYaUFQAAAABAQEBAQEBAQEBAQEBAQEBEhtWQlAAJjAgGDQAWMEQAAAYAAAADwAAAAAAAAAAAAAAAAAgAAAA/gBBVU8KICAgICAgICAgAAAA/gBCMTU2WFcwMiBWMCAKAF8= DRM.card0.VGA.1: status: connected enabled: enabled dpms: On modes: 1680x1050 1680x1050 1280x1024 1280x1024 1440x900 1440x900 1280x960 1152x864 1024x768 1024x768 832x624 800x600 800x600 800x600 640x480 640x480 720x400 edid-base64: AP///////wAebXdWUEUDAAMUAQNqMSB46q7FoldKnCUSUFSna4CVD5UAgYCBQHFPAQEBAQEBfC6QoGAaHkAwIDYA2igRAAAaITmQMGIaJ0BosDYA2igRAAAcAAAA/QA4Sx5TDwAKICAgICAgAAAA/ABXMjI0MgogICAgICAgAK4= Date: Wed Mar 23 21:13:46 2011 InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4) MachineType: Hewlett-Packard Compaq 610 ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-28-generic root=UUID=72a7f734-513b-40d0-9cbe-cc16ffb4239a ro quiet splash ProcEnviron: LC_TIME=nl_NL.UTF-8 PATH=(custom, user) LANG=C SHELL=/bin/bash LC_PAPER=A4 SourcePackage: xorg Symptom: display dmi.bios.date: 12/17/2009 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68PVU Ver. F.0D dmi.board.name: 308A dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 26.08 dmi.chassis.asset.tag: CNU0064GLG dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68PVUVer.F.0D:bd12/17/2009:svnHewlett-Packard:pnCompaq610:pvrF.0D:rvnHewlett-Packard:rn308A:rvrKBCVersion26.08:cvnHewlett-Packard:ct10:cvr: dmi.product.name: Compaq 610 dmi.product.version: F.0D dmi.sys.vendor: Hewlett-Packard system: distro: Ubuntu codename: maverick architecture: i686 kernel: 2.6.35-28-generic + + [lspci] + 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GME965/GLE960 Integrated Graphics Controller [8086:2a12] (rev 0c) (prog-if 00 [VGA controller]) + Subsystem: Hewlett-Packard Company Device [103c:308a]
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/741284 Title: severe 2D performance degradation after upgrade to Maverick _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
