strconv: 34% to 63% faster conversions
(Note that the Int and Uint benchmarks use different test sets
and thus cannot be compared against each other. Int and Uint
conversions are approximately the same speed).
Before (best of 3 runs):
strconv_test.BenchmarkFormatInt 100000 15636 ns/op
strconv_test.BenchmarkAppendInt 100000 18930 ns/op
strconv_test.BenchmarkFormatUint 500000 4392 ns/op
strconv_test.BenchmarkAppendUint 500000 5152 ns/op
After (best of 3 runs):
strconv_test.BenchmarkFormatInt 200000 10070 ns/op (-36%)
strconv_test.BenchmarkAppendInt 200000 7097 ns/op (-63%)
strconv_test.BenchmarkFormatUint
1000000 2893 ns/op (-34%)
strconv_test.BenchmarkAppendUint 500000 2462 ns/op (-52%)
R=r, rsc, r
CC=golang-dev
https://golang.org/cl/
5449093