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lib/uint64set: optimize Set.Has() for nil Set - it should be inlined now

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This makes unnecessary the checkDeleted variable at lib/storage/index_db.go

This is a follow-up for b984f4672e
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6342
This commit is contained in:
Aliaksandr Valialkin 2024-07-15 23:59:13 +02:00
parent 832e088659
commit 784327ea30
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GPG key ID: 52C003EE2BCDB9EB
2 changed files with 11 additions and 12 deletions
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19
lib/storage/index_db.go
View file

@ -656,7 +656,7 @@ func (is *indexSearch) searchLabelNamesWithFiltersOnDate(qt *querytracer.Tracer,
if filter != nil && filter.Len() <= 100e3 {
// It is faster to obtain label names by metricIDs from the filter
// instead of scanning the inverted index for the matching filters.
// This would help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2978
// This should help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2978
metricIDs := filter.AppendTo(nil)
qt.Printf("sort %d metricIDs", len(metricIDs))
is.getLabelNamesForMetricIDs(qt, metricIDs, lns, maxLabelNames)
@ -749,13 +749,12 @@ func (is *indexSearch) getLabelNamesForMetricIDs(qt *querytracer.Tracer, metricI
}
dmis := is.db.s.getDeletedMetricIDs()
checkDeleted := dmis.Len() > 0
var mn MetricName
foundLabelNames := 0
var buf []byte
for _, metricID := range metricIDs {
if checkDeleted && dmis.Has(metricID) {
if dmis.Has(metricID) {
// skip deleted IDs from result
continue
}
@ -882,7 +881,7 @@ func (is *indexSearch) searchLabelValuesWithFiltersOnDate(qt *querytracer.Tracer
if filter != nil && filter.Len() <= 100e3 {
// It is faster to obtain label values by metricIDs from the filter
// instead of scanning the inverted index for the matching filters.
// This would help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2978
// This should help https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2978
metricIDs := filter.AppendTo(nil)
qt.Printf("sort %d metricIDs", len(metricIDs))
is.getLabelValuesForMetricIDs(qt, lvs, labelName, metricIDs, maxLabelValues)
@ -956,13 +955,12 @@ func (is *indexSearch) getLabelValuesForMetricIDs(qt *querytracer.Tracer, lvs ma
}
dmis := is.db.s.getDeletedMetricIDs()
checkDeleted := dmis.Len() > 0
var mn MetricName
foundLabelValues := 0
var buf []byte
for _, metricID := range metricIDs {
if checkDeleted && dmis.Has(metricID) {
if dmis.Has(metricID) {
// skip deleted IDs from result
continue
}
@ -1858,12 +1856,9 @@ func (is *indexSearch) getTSIDByMetricNameNoExtDB(dst *TSID, metricName []byte,
if len(tail) > 0 {
logger.Panicf("FATAL: unexpected non-empty tail left after unmarshaling TSID: %X", tail)
}
if dmis.Len() > 0 {
// Verify whether the dst is marked as deleted.
if dmis.Has(dst.MetricID) {
// The dst is deleted. Continue searching.
continue
}
if dmis.Has(dst.MetricID) {
// The dst is deleted. Continue searching.
continue
}
// Found valid dst.
return true

4
lib/uint64set/uint64set.go
View file

@ -183,6 +183,10 @@ func (s *Set) Has(x uint64) bool {
if s == nil {
return false
}
return s.hasSlow(x)
}
func (s *Set) hasSlow(x uint64) bool {
hi32 := uint32(x >> 32)
lo32 := uint32(x)
bs := s.buckets