mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-05-17 08:51:14 +02:00
33 lines
744 B
Go
33 lines
744 B
Go
package udptransfer
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import (
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"math"
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"testing"
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"time"
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)
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func Test_sleep(t *testing.T) {
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const loops = 10
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var intervals = [...]int64{1, 1e3, 1e4, 1e5, 1e6, 1e7}
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var ret [len(intervals)][loops]int64
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for j := 0; j < len(intervals); j++ {
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v := time.Duration(intervals[j])
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for i := 0; i < loops; i++ {
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t0 := NowNS()
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time.Sleep(v)
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ret[j][i] = NowNS() - t0
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}
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}
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for j := 0; j < len(intervals); j++ {
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var exp, sum, stdev float64
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exp = float64(intervals[j])
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for _, v := range ret[j] {
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sum += float64(v)
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stdev += math.Pow(float64(v)-exp, 2)
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}
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stdev /= float64(loops)
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stdev = math.Sqrt(stdev)
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t.Logf("interval=%s sleeping=%s stdev/k=%.2f", time.Duration(intervals[j]), time.Duration(sum/loops), stdev/1e3)
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}
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}
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