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strings: remove allocations in Split(s, "")

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BenchmarkSplit1     77984460     24131380  -69.06%

R=golang-dev, rsc, minux.ma, dave, extemporalgenome
CC=golang-dev
https://golang.org/cl/7458043
This commit is contained in:
Ewan Chou 2013-03-06 15:21:19 -05:00 • committed by Russ Cox
parent 64eec93225
commit 4f43201e51
2 changed files with 23 additions and 1 deletions
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18
src/pkg/strings/strings_test.go
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@ -1095,3 +1095,21 @@ func BenchmarkFieldsFunc(b *testing.B) {
FieldsFunc(fieldsInput, unicode.IsSpace)
}
}
func BenchmarkSplit1(b *testing.B) {
for i := 0; i < b.N; i++ {
Split(benchInputHard, "")
}
}
func BenchmarkSplit2(b *testing.B) {
for i := 0; i < b.N; i++ {
Split(benchInputHard, "/")
}
}
func BenchmarkSplit3(b *testing.B) {
for i := 0; i < b.N; i++ {
Split(benchInputHard, "hello")
}
}