I've been running 14.04 for a few days now and the cpu usage at idle hovers between 22-45% ,about 95% with chromium open, 50% with nautilius, 90% WITH DASH for gods sake, 60% with compiz and about 85% with ubuntu tweak running. And the lag was so horrible i had to disable almost all animations and effects AND reduce all animation times to 50 ms AND animation time step to 2..
For a contrast idle cpu usage was 5% in 12.10 and 2% in windows xp..Ive tried almost everything,nothing works.. I use: wipro little genius WLG7B1630V core2duo @2 ghz 2 gb ddr2 ram @333mhz 512 mb SiS vga graphics with vesa: 6330 drivers Any workarounds guys?? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/1293384 Title: Compiz CPU usage dramatically increased in Ubuntu 14.04 Status in Compiz: Triaged Status in “compiz” package in Ubuntu: Triaged Bug description: It appears that the workload of low-level graphical operations used by compiz when, for example, moving windows has increased dramatically between Ubuntu 12.04 and Ubuntu 14.04. This might not be that visible when using high-end gpus, but should be clearly visible when using compiz on llvmpipe and to some-extent invalidates the approach of using compiz on top of llvmpipe as a fallback when no GPU is available: How to reproduce: 1) Use the unity-3d desktop in Ubuntu 14.04 on top of a non-accelerating Xorg driver like "modesetting". Move windows around. Note peak and average cpu-usage. How to verify compiz is the culprit: 1) copy /usr/bin/compiz from a Ubuntu 12.04 installation. Drop it in as /usr/bin/compiz on 14.04. Reboot. Perform the same window movement. CPU-usage should be substantially lower. This problem also affects VMs running on VMware ESX with a software- rendering GPU. Window movement becomes sluggish, which suggests that even with GPUs, compiz has increased the number of operations required to move windows. To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1293384/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
