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Libavcodec – native NEON compile vs hybrid mode
By admin | October 4, 2012
Background
Benchmarks using the latest VLC beta and benching whether a native build solely for NEON is faster or a hybrid build. The expectation is that the native build should be very slightly faster than the hybrid build. This is done on a TI OMAP 4460 (Galaxy Nexus). Method is same as previous benchmarks.
Results
Ironically, it appears that the hybrid build is slightly faster(?) than the native NEON build, although in practice there is no real difference for the user. So the proper result should be inconclusive.
| Hybrid mean | 80.25% | Native NEON mean | 81.56% |
| Hybrid median | 82.10% | Native NEON median | 82.80% |
Raw data
Hybrid build: 19453 126 10079 R 575m 82.6 1 72.0 org.videolan.vlc 19453 126 10079 S 593m 85.3 1 64.4 org.videolan.vlc 19453 126 10079 S 594m 85.4 1 85.0 org.videolan.vlc 19453 126 10079 S 594m 85.5 0 83.1 org.videolan.vlc 19453 126 10079 S 594m 85.5 0 81.8 org.videolan.vlc 19453 126 10079 S 597m 85.9 0 77.9 org.videolan.vlc 19453 126 10079 S 597m 85.9 0 85.6 org.videolan.vlc 19453 126 10079 S 597m 85.9 0 85.5 org.videolan.vlc 19453 126 10079 S 598m 85.9 0 81.6 org.videolan.vlc 19453 126 10079 S 598m 86.0 0 82.1 org.videolan.vlc 19453 126 10079 S 598m 86.0 1 83.8 org.videolan.vlc Native NEON build: 19703 126 10079 S 590m 84.8 0 68.4 org.videolan.vlc 19703 126 10079 S 589m 84.7 1 82.3 org.videolan.vlc 19703 126 10079 S 592m 85.1 1 81.1 org.videolan.vlc 19703 126 10079 S 592m 85.1 1 83.0 org.videolan.vlc 19703 126 10079 S 593m 85.2 1 81.0 org.videolan.vlc 19703 126 10079 S 593m 85.3 1 83.2 org.videolan.vlc 19703 126 10079 S 593m 85.3 1 82.8 org.videolan.vlc 19703 126 10079 S 594m 85.3 1 79.8 org.videolan.vlc 19703 126 10079 S 594m 85.4 1 83.8 org.videolan.vlc 19703 126 10079 S 594m 85.4 1 85.6 org.videolan.vlc 19703 126 10079 S 594m 85.4 1 86.2 org.videolan.vlc
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