I can independently confirm there is ridiculously high CPU usage by any
recent version of firefox-{4-9,10} when displaying any videos.I do not believe this is anything to do with video drivers because the same problem occurs on very different CPUs such as Intel Atom N270 with Intel graphics and Intel Core i7 with nVidia graphics, same on different architectures: 32 and 64 bit, and same under Linux/Ubuntu and under Windows 7 Ultimate (Windows 7U). On Windows 7U 64bit, IE9 plays youtube videos with only 40% CPU load, whereas Firefox 9 on the same videos takes 85-90% load. Similarly, on Linux/Ubuntu Oneiric 11.10 (AMD64), Firefox 9.0.1 with latest version of the Flash plugin takes 90% CPU usage. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/871412 Title: more than 80% cpu usage when watching youtube video (flash or html5) firefox and chromium To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/871412/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
