Nigel Tao
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746988e7a2
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vector: add SIMD versions of xxxAccumulateOpSrc.
name old time/op new time/op delta
GlyphAlpha16Src-8 3.37µs ± 0% 3.07µs ± 1% -8.86% (p=0.000 n=9+9)
GlyphAlpha32Src-8 6.01µs ± 1% 4.55µs ± 0% -24.28% (p=0.000 n=10+9)
GlyphAlpha64Src-8 13.2µs ± 0% 8.1µs ± 0% -38.69% (p=0.000 n=10+9)
GlyphAlpha128Src-8 32.9µs ± 0% 16.9µs ± 0% -48.85% (p=0.000 n=10+9)
GlyphAlpha256Src-8 98.0µs ± 0% 43.6µs ± 1% -55.50% (p=0.000 n=10+10)
A comparison of the non-SIMD and SIMD versions:
name time/op
FixedAccumulateOpSrc16-8 368ns ± 0%
FixedAccumulateOpSrcSIMD16-8 86.8ns ± 1%
FloatingAccumulateOpSrc16-8 434ns ± 0%
FloatingAccumulateOpSrcSIMD16-8 119ns ± 0%
FixedAccumulateOpSrc64-8 6.12µs ± 0%
FixedAccumulateOpSrcSIMD64-8 1.17µs ± 0%
FloatingAccumulateOpSrc64-8 7.15µs ± 0%
FloatingAccumulateOpSrcSIMD64-8 1.68µs ± 1%
Change-Id: I58e5c7a3ecd12e536aab8e765e94275453d0eac8
Reviewed-on: https://go-review.googlesource.com/30431
Reviewed-by: David Crawshaw <crawshaw@golang.org>
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2016-10-10 07:32:32 +00:00 |
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