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Re-use timer instead of creating new ones on every sample

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The docs for `time.After()` note that "The underlying Timer is not
recovered by the garbage collector until the timer fires".
This commit is contained in:
Bryan Boreham 2018-01-24 12:36:29 +00:00
parent f64014f70b
commit 8a4535e6ad
1 changed files with 7 additions and 1 deletions
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8
storage/remote/queue_manager.go
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@ -430,6 +430,8 @@ func (s *shards) runShard(i int) {
// anyways. // anyways.
pendingSamples := model.Samples{} pendingSamples := model.Samples{}
timer := time.NewTimer(s.qm.cfg.BatchSendDeadline)
for { for {
select { select {
case sample, ok := <-queue: case sample, ok := <-queue:
@ -449,7 +451,11 @@ func (s *shards) runShard(i int) {
s.sendSamples(pendingSamples[:s.qm.cfg.MaxSamplesPerSend]) s.sendSamples(pendingSamples[:s.qm.cfg.MaxSamplesPerSend])
pendingSamples = pendingSamples[s.qm.cfg.MaxSamplesPerSend:] pendingSamples = pendingSamples[s.qm.cfg.MaxSamplesPerSend:]
} }
case <-time.After(s.qm.cfg.BatchSendDeadline): if !timer.Stop() {
<-timer.C
}
timer.Reset(s.qm.cfg.BatchSendDeadline)
case <-timer.C:
if len(pendingSamples) > 0 { if len(pendingSamples) > 0 {
s.sendSamples(pendingSamples) s.sendSamples(pendingSamples)
pendingSamples = pendingSamples[:0] pendingSamples = pendingSamples[:0]