func logBatchCommit(b datastore.Batch, n int, num, errs metrics.Counter, lat *metrics.Histogram) error {
if n > 0 {
before := time.Now()
err := b.Commit()
took := int(time.Now().Sub(before)/time.Microsecond) / n
num.AddN(uint64(n))
for i := 0; i < n; i++ {
_ = lat.RecordValue(int64(took))
}
if err != nil {
errs.Add()
return err
}
}
return nil
}
func recordLatency(h *metrics.Histogram, start time.Time) {
elapsed := time.Now().Sub(start) / time.Microsecond
_ = h.RecordValue(int64(elapsed))
}