// Run periodically calls m.updateHandler.
func (m *MetricTags) Run() {
// Collect Go's runtime stats the first time this is run.
metrics.RegisterDebugGCStats(m.registry)
metrics.RegisterRuntimeMemStats(m.registry)
updateTime := m.nowHandler()
gcTime, memTime := updateTime, updateTime
for {
now := m.nowHandler()
// Get GC runtime stats
if now.Sub(gcTime) > m.StatsGCCollection {
metrics.CaptureDebugGCStatsOnce(m.registry)
gcTime = now
}
// Get memory runtime stats
if now.Sub(memTime) > m.StatsMemCollection {
metrics.CaptureRuntimeMemStatsOnce(m.registry)
memTime = now
}
select {
case <-m.quitCh:
// Update stats one last time
m.updateHandler()
m.quitCh <- struct{}{}
return
case <-time.After(m.flushInterval):
m.updateHandler()
}
}
}
func newMemoryMetricaDataSource(pollInterval int) goMetricaDataSource {
r := metrics.NewRegistry()
metrics.RegisterRuntimeMemStats(r)
metrics.CaptureRuntimeMemStatsOnce(r)
go metrics.CaptureRuntimeMemStats(r, time.Duration(pollInterval)*time.Second)
return goMetricaDataSource{r}
}