src/pkg/bytes/asm_arm.s · 0681b13437e36de582521d5b9f1b4664400312a9 · Kirill Smelkov / go

bytes: add assembly version of IndexByte for ARM · 0681b134

Dave Cheney authored Apr 25, 2012

benchmark                        old ns/op    new ns/op    delta
BenchmarkIndexByte32                   459          126  -72.55%
BenchmarkIndexByte4K                 52404        10939  -79.13%
BenchmarkIndexByte4M              54470800     11177370  -79.48%
BenchmarkIndexByte64M           1010803000    178860500  -82.31%

benchmark                         old MB/s     new MB/s  speedup
BenchmarkIndexByte32                 69.58       252.63    3.63x
BenchmarkIndexByte4K                 78.16       374.42    4.79x
BenchmarkIndexByte4M                 77.00       375.25    4.87x
BenchmarkIndexByte64M                66.39       375.20    5.65x

R=rsc, minux.ma
CC=golang-dev
https://golang.org/cl/6106044

0681b134

asm_arm.s 622 Bytes

Replace asm_arm.s