On Sat, 19 Jan 2013 16:16:51 +0000 Ben Avison <[email protected]> wrote:
> These are usable either as various composite operations, or via the > top-level function pixman_blt() which now does some blitting for the > first time on an ARMv6 platform (previously it just returned FALSE). Hi, generally the results are quite good and show an improvement. Just one thing looks a bit odd. > src_8888_8888 > > Before After > Mean StdDev Mean StdDev Confidence Change > L1 414.5 9.4 445.8 3.6 100.0% +7.6% > L2 93.3 20.7 114.5 12.9 100.0% +22.7% > M 57.0 0.2 89.2 0.5 100.0% +56.4% 89.2 MPix/s * 32bpp = ~357 MB/s > HT 28.7 0.3 39.6 0.4 100.0% +37.9% > VT 25.5 0.2 35.3 0.4 100.0% +38.4% > R 20.1 0.1 33.8 0.3 100.0% +67.8% > RT 7.8 0.2 12.7 0.4 100.0% +62.7% > > src_0565_0565 > > Before After > Mean StdDev Mean StdDev Confidence Change > L1 397.4 6.1 412.5 5.2 100.0% +3.8% > L2 143.2 10.9 141.9 6.5 68.9% -0.9% (insignificant) > M 90.7 0.4 133.5 0.7 100.0% +47.1% 133.5 MPix/s * 16bpp = ~267 MB/s Seems to be a much less efficient use of memory bandwidth here compared to src_8888_8888? > HT 38.6 0.3 53.7 0.7 100.0% +39.0% > VT 33.0 0.3 47.3 0.6 100.0% +43.3% > R 25.7 0.2 42.1 0.5 100.0% +64.1% > RT 8.0 0.2 13.3 0.3 100.0% +65.6% > > src_8_8 > > Before After > Mean StdDev Mean StdDev Confidence Change > L1 716.5 9.8 768.2 20.4 100.0% +7.2% > L2 246.2 12.7 260.5 8.8 100.0% +5.8% > M 146.8 0.7 227.9 0.7 100.0% +55.2% > HT 44.9 0.6 62.1 1.0 100.0% +38.2% > VT 35.6 0.4 53.4 0.7 100.0% +50.0% > R 29.7 0.3 48.2 0.6 100.0% +62.2% > RT 8.6 0.2 12.9 0.4 100.0% +49.3% -- Best regards, Siarhei Siamashka _______________________________________________ Pixman mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/pixman
