36% faster encode_mcu_AC_first(), by eliminating an unpredictable branch in the inner loop #38
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…nch in the inner loop Which corresponds to 15% faster overall encoding in "progressive scan optimization" mode. (And a negligible speedup in -fastcrush mode.)
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Frank - can you review this? |
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Can do. May have to wait until tomorrow. Sent from my iPhone
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fbossen
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Apr 14, 2014
36% faster encode_mcu_AC_first(), by eliminating an unpredictable branch in the inner loop
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@pengvado - Out of interest, is this based on the cache missing analysis published here? ...
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@pengvado - Neat. Thanks for the info :) |
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Which corresponds to 15% faster overall encoding in "progressive scan optimization" mode.
(And a negligible speedup in -fastcrush mode.)