Forwarding this to devel. Any comments or suggestions on how we can start to optimize graphics performance is appreciated.
It looks like we have a good test bed in place which should help us focus on the right bottlenecks. Thanks, Greg S Greg Smith wrote: > Hi Neil, > > That's great data, thanks! > > > I put these links here for tracking: > http://wiki.laptop.org/go/Feature_roadmap/General_UI_sluggishness > > John, > > Do you have further suggestions on what bottle necks this points to? > What part of the code should be optimized to improve the graphics > performance based on these results and what do you think Neil's next > steps should be? > > Thanks, > > Greg S > > Neil Graham wrote: >> On Tue, 2008-12-09 at 15:43 -0500, Greg Smith wrote: >> >>> Three ideas on how you can help. >>> >>> 1 - There is a recent thread on SVG performance. See: >>> http://lists.sugarlabs.org/archive/sugar-devel/2008-December/010200.html >>> >>> You may find something there you can contribute to. >>> >>> 2 - I also get the impression we do need to work on the Cairo front. >>> If you can list a set of bugs, we can flag them as useful for 9.1 and >>> track them. >> >> Well To start off with I compiled the cairo benchmarks and ran them on >> my slowest PC (2Ghz) and the XO (from a basic startx ) >> >> http://screamingduck.com/Cruft/cairo_benchmark_XO.txt >> http://screamingduck.com/Cruft/cairo_benchmark_2GHz_E2180.txt >> >> >> At least this gives me some base data to work with. Some of the tests >> on the XO have some eyebrow raising results, such as... >> >> downsample-nearest >> Testing 512x512-lenna... >> 0: 851892 (1.98 ms) >> 1: 855671 (1.99 ms) >> 2: 905907 (2.10 ms) >> 3: 862388 (2.00 ms) >> 4: 852743 (1.98 ms) >> >> downsample-nearest-xlib >> Testing 512x512-lenna... >> 0: 10102252 (23.44 ms) >> 1: 33629542 (78.02 ms) >> 2: 33715350 (78.22 ms) >> 3: 34031523 (78.96 ms) >> >> >> > _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
