How to set cpu sample rate

[ray2011]

func (ps *Session) uploadData(startTime, endTime time.Time) {
	if ps.isCPUEnabled() {
		pprof.StopCPUProfile()
		defer func() {
			pprof.StartCPUProfile(ps.cpuBuf)
		}()
		ps.upstream.Upload(&upstream.UploadJob{
			Name:            ps.appName,
			StartTime:       startTime,
			EndTime:         endTime,
			SpyName:         "gospy",
			SampleRate:      100,
			Units:           "samples",
			AggregationType: "sum",
			Format:          upstream.FormatPprof,
			Profile:         copyBuf(ps.cpuBuf.Bytes()),
		})
		ps.cpuBuf.Reset()
	}
    //........
}

Now:
No matter what config.SimpleRate is, cpu profile was always turned on after last uploadData finish.