-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 08/09/11 16:08, Adam Jackson wrote: > > I'm nearly sure it wasn't. > > There have been two xserver updates between the 2011-05-11 snapshot > and now. In a quick review of the changes in that interval I can > only find one change that looks even remotely like a performance > improvement: > > http://cgit.freedesktop.org/xorg/xserver/commit/?id=9504caf1c3243e3ab2eb7126bc2bb876a8f89918 > > And even that is pretty borderline. It inhibits the normal > implicit draw that the server would do on exposure processing when > a window has a particular redirection mode set by the compositor, > but a) when composited, exposures are extremely rare, essentially > only happening when a window transitions from unmapped to mapped; > and b) background paints are _cheap_, usually just a solid fill of > the grey from your theme color, but even in the worst case just a > tiled pixmap blit. > > If all you're looking for is a "is config A faster than config B" > kind of measurement, then something like > Thank you for going into this. > % x11perf -copypixwin{10,100,500} > > isn't completely misleading, although it's not uncommon for > successive x11perf runs to vary by up to 5%, and when composited > the x11perf benchmarks require _very_ careful understanding of just > what exactly you're measuring and can be wildly variable even > within a single run. > > I realize I'm begging to get inundated with x11perf scores by even > mentioning it. Oh well. > > - ajax I didn't intend to run this on a daily basis whining about 5% loss, hooraying for each win. I just tried to get nearer to this problem. I'm pretty sure, nearly nobody would notice 10% deviation. Looking at the bug report[1] knurd mentioned, I'll try a kernel 2.6.40 to see, what happens. [1] https://bugzilla.redhat.com/show_bug.cgi?id=735268 Matthias - -- Matthias Runge <mrunge@xxxxxxxxxxxxxxxxx> <mrunge@xxxxxxxxxxxxxxxxx> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJOacs3AAoJEOnz8qQwcaIWAJAH/iH51IpteFkxJKefOlmYON4M TkoPwlHsduV9AMhguEizC3NTyD+6b71KQ8dLb2ENAG5QAvnawq3KeJ/Wv4us2Lft AyAeOtSlGS8g5svQP80JokLeYh6w0h9A3AntG2X6IwlUBbduygCKb0FvjnIo+jlk f1tIteNFJy2Mt+NtDA/lXHGZtqObHtoQwiJP2+JyqEWIsHyegZ939uRFz4AC9T2K XanWNqDzJU9yN3ZovqS9ZKVbkMHpaFYNSJEFHsfTRaBcpro532+UdGiZywlQ5+ku T8AlWxkTBMnP8Tgpx8u4cSiIiCwp5nJBtQauLNreXI0d/iGeR4NQutrbXyuRx0w= =Z9Gt -----END PGP SIGNATURE----- -- test mailing list test@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/test
