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runtime/pprof: method StartCPUProfile adds a parameter to allow custom cpu rate. #42541

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runtime/pprof: method StartCPUProfile adds a parameter to allow custom cpu rate. #42541

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4 changes: 4 additions & 0 deletions src/runtime/pprof/pprof.go
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Original file line number Diff line number Diff line change
Expand Up @@ -769,7 +769,11 @@ func StartCPUProfile(w io.Writer) error {
// convert sample counts to seconds. Instead of requiring
// each client to specify the frequency, we hard code it.
const hz = 100
return StartCPUProfileWithRate(w, hz)
}

// StartCPUProfileWithRate enables CPU profiling for the current process with specified rate.
func StartCPUProfileWithRate(w io.Writer, hz int) error {
cpu.Lock()
defer cpu.Unlock()
if cpu.done == nil {
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