func ExamplePauses() {
pauses := NewPauses(512)
go func() {
for {
pauses.Update()
time.Sleep(time.Minute)
}
}()
perc95 := instruments.Quantile(pauses.Snapshot(), 0.95)
fmt.Println(perc95)
}
// Log logs metrics using logfmt every given duration.
func Log(source string, r *Registry, d time.Duration) {
for {
time.Sleep(d)
var parts []string
for k, m := range r.Instruments() {
switch i := m.(type) {
case instruments.Discrete:
s := i.Snapshot()
parts = append(parts, fmt.Sprintf("sample#%s=%d", k, s))
case instruments.Sample:
s := instruments.Quantile(i.Snapshot(), 0.95)
parts = append(parts, fmt.Sprintf("sample#%s=%d", k, s))
}
}
log.Println(fmt.Sprintf("source=%s", source), strings.Join(parts, " "))
}
}