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app/vmselect/promql: do not spend CPU time on verifying whether the rollup cache needs to be reset for the given metric rows when it has been already instructed to reset

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Aliaksandr Valialkin 2024-01-26 21:13:38 +01:00
parent 4ac7e3a355
commit 8e03bc6b53
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1 changed files with 5 additions and 0 deletions
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5
app/vmselect/promql/rollup_result_cache.go
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@ -43,6 +43,11 @@ func ResetRollupResultCacheIfNeeded(mrs []storage.MetricRow) {
rollupResultResetMetricRowSample.Store(&storage.MetricRow{})
go checkRollupResultCacheReset()
})
if atomic.LoadUint32(&needRollupResultCacheReset) != 0 {
// The cache has been already instructed to reset.
return
}
minTimestamp := int64(fasttime.UnixTimestamp()*1000) - cacheTimestampOffset.Milliseconds() + checkRollupResultCacheResetInterval.Milliseconds()
needCacheReset := false
for i := range mrs {