encoding/json: make BenchmarkSkipValue more stable
BenchmarkSkipValue was sensitive to the value of
b.N due to its significant startup cost.
Two adjacent runs before this CL:
BenchmarkSkipValue 50 21047499 ns/op 93.37 MB/s
BenchmarkSkipValue 100 17260554 ns/op 118.05 MB/s
After this CL, using benchtime to recreate the
difference in b.N:
BenchmarkSkipValue 50 15204797 ns/op 131.67 MB/s
BenchmarkSkipValue 100 15332319 ns/op 130.58 MB/s
Change-Id: Iac86f86dd774d535302fa5e4c08f89f8da00be9e
Reviewed-on: https://go-review.googlesource.com/10053
Reviewed-by: Andrew Gerrand <adg@golang.org>
diff --git a/src/encoding/json/scanner_test.go b/src/encoding/json/scanner_test.go
index 7880342..66383ef 100644
--- a/src/encoding/json/scanner_test.go
+++ b/src/encoding/json/scanner_test.go
@@ -209,6 +209,7 @@
func BenchmarkSkipValue(b *testing.B) {
initBig()
+ b.ResetTimer()
for i := 0; i < b.N; i++ {
nextValue(jsonBig, &benchScan)
}
