On a different platform (Thinkpad T400 w/ Radeon HD 3470) with the radeon stack, we see:
2.6.31-12-generic w/o CONFIG_X86_PAT $ x11perf -movetree 800000 reps @ 0.0094 msec (107000.0/sec): Move window via parent (4 kids) $ x11perf -scroll500 5000 reps @ 1.2153 msec ( 823.0/sec): Scroll 500x500 pixels 2.6.31.3-295c w/ CONFIG_X86_PAT $ x11perf -movetree 1200000 reps @ 0.0043 msec (235000.0/sec): Move window via parent (4 kids) $ x11perf -scroll500 50000 reps @ 0.1209 msec ( 8270.0/sec): Scroll 500x500 pixels -> that's a 2.2x and 10x speed increase respectively. Power is saved, as PCIe bus and processor utilisation are lower; scrolling in applications is smoother -- karmic kernel configuration gotchas... https://bugs.launchpad.net/bugs/446480 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
