runtime: use RunParallel in more benchmarks
LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/68020043
diff --git a/src/pkg/runtime/proc_test.go b/src/pkg/runtime/proc_test.go
index fb9c76c..5be3551 100644
--- a/src/pkg/runtime/proc_test.go
+++ b/src/pkg/runtime/proc_test.go
@@ -370,24 +370,11 @@
}
func benchmarkStackGrowth(b *testing.B, rec int) {
- const CallsPerSched = 1000
- procs := runtime.GOMAXPROCS(-1)
- N := int32(b.N / CallsPerSched)
- c := make(chan bool, procs)
- for p := 0; p < procs; p++ {
- go func() {
- for atomic.AddInt32(&N, -1) >= 0 {
- runtime.Gosched()
- for g := 0; g < CallsPerSched; g++ {
- stackGrowthRecursive(rec)
- }
- }
- c <- true
- }()
- }
- for p := 0; p < procs; p++ {
- <-c
- }
+ b.RunParallel(func(pb *testing.PB) {
+ for pb.Next() {
+ stackGrowthRecursive(rec)
+ }
+ })
}
func BenchmarkStackGrowth(b *testing.B) {
