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20 lines
427 B
Go
20 lines
427 B
Go
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package timeutil
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import (
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"time"
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"github.com/valyala/fastrand"
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)
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// AddJitterToDuration adds up to 10% random jitter to d and returns the resulting duration.
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//
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// The maximum jitter is limited by 10 seconds.
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func AddJitterToDuration(d time.Duration) time.Duration {
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dv := d / 10
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if dv > 10*time.Second {
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dv = 10 * time.Second
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}
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p := float64(fastrand.Uint32()) / (1 << 32)
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return d + time.Duration(p*float64(dv))
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}
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