Awesome Steve - congrats! :) > SUCCESS! > > I figured out the major problem with my SSE code. Apparently you have > to pay special attention to how the CPU access memory and provide the > proper cache hints so it doesn't starve itself and make you wait for > slow RAM accesses. > > This simple commit has made a huge difference on RemoteFX performance > (more optimizations to come): > > https://github.com/FreeRDP/FreeRDP/commit/220008fad7dc7eabc81e2e03b81604145d369ad4 > > before change: > > | rfx_decode_YCbCr_to_RGB_SSE2 | 15671 | 4.740000 | 0.000302 | > > after change: > > | rfx_decode_YCbCr_to_RGB_SSE2 | 24945 | 0.460000 | 0.000018 | > > > That is a> 18x improvement over the previous version, and the > difference is visually noticeable. > The SSE optimized method is now about 5-6x faster than the non-SSE method. > > Both of these results came from my Intel Atom D510 board. > > Thanks, > Steve > > > On 6/10/2011 1:09 AM, S. Erisman wrote: >> Hey Vic, >> >> On 6/10/2011 12:32 AM, Vic Lee wrote: >>> Hi Steve, >>> >>> Yes both is faster, but the SSE version is still quite slower than the >>> original one. Here is my testing. >>> >>> Before pulling: >>> | rfx_decode_YCbCr_to_RGB_SSE2 | 2123 | 1.750000 | 0.000824 | >>> | rfx_decode_YCbCr_to_RGB | 2098 | 0.260000 | 0.000124 | >>> >>> After pulling your commits: >>> | rfx_decode_YCbCr_to_RGB_SSE2 | 2049 | 0.690000 | 0.000337 | >>> | rfx_decode_YCbCr_to_RGB | 2111 | 0.240000 | 0.000114 | >>> >>> Oh by the way, the profiler is cool. :) >>> >>> Vic > > ------------------------------------------------------------------------------ > EditLive Enterprise is the world's most technically advanced content > authoring tool. Experience the power of Track Changes, Inline Image > Editing and ensure content is compliant with Accessibility Checking. > http://p.sf.net/sfu/ephox-dev2dev > _______________________________________________ > Freerdp-devel mailing list > Freerdp-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freerdp-devel
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