VictoriaMetrics/lib/storage/index_db_timing_test.go
Aliaksandr Valialkin c4f3fbfa5d lib/storage: reset cache on disk during series deletion and during indexdb rotation
This should prevent from inconsistent behavior (aka partially missing data for some time series) after unclean shutdown.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1347
2021-06-11 12:42:28 +03:00

339 lines
9.3 KiB
Go

package storage
import (
"fmt"
"os"
"regexp"
"strconv"
"testing"
"time"
)
func BenchmarkRegexpFilterMatch(b *testing.B) {
b.ReportAllocs()
b.RunParallel(func(pb *testing.PB) {
re := regexp.MustCompile(`.*foo-bar-baz.*`)
b := []byte("fdsffd foo-bar-baz assd fdsfad dasf dsa")
for pb.Next() {
if !re.Match(b) {
panic("BUG: regexp must match!")
}
b[0]++
}
})
}
func BenchmarkRegexpFilterMismatch(b *testing.B) {
b.ReportAllocs()
b.RunParallel(func(pb *testing.PB) {
re := regexp.MustCompile(`.*foo-bar-baz.*`)
b := []byte("fdsffd foo-bar sfddsf assd nmn,mfdsdsakj")
for pb.Next() {
if re.Match(b) {
panic("BUG: regexp mustn't match!")
}
b[0]++
}
})
}
func BenchmarkIndexDBAddTSIDs(b *testing.B) {
const recordsPerLoop = 1e3
s := newTestStorage()
defer stopTestStorage(s)
const dbName = "bench-index-db-add-tsids"
db, err := openIndexDB(dbName, s)
if err != nil {
b.Fatalf("cannot open indexDB: %s", err)
}
defer func() {
db.MustClose()
if err := os.RemoveAll(dbName); err != nil {
b.Fatalf("cannot remove indexDB: %s", err)
}
}()
b.ReportAllocs()
b.SetBytes(recordsPerLoop)
b.ResetTimer()
b.RunParallel(func(pb *testing.PB) {
var mn MetricName
var tsid TSID
// The most common tags.
mn.Tags = []Tag{
{
Key: []byte("job"),
},
{
Key: []byte("instance"),
},
}
startOffset := 0
for pb.Next() {
benchmarkIndexDBAddTSIDs(db, &tsid, &mn, startOffset, recordsPerLoop)
startOffset += recordsPerLoop
}
})
b.StopTimer()
}
func benchmarkIndexDBAddTSIDs(db *indexDB, tsid *TSID, mn *MetricName, startOffset, recordsPerLoop int) {
var metricName []byte
is := db.getIndexSearch(noDeadline)
defer db.putIndexSearch(is)
for i := 0; i < recordsPerLoop; i++ {
mn.MetricGroup = strconv.AppendUint(mn.MetricGroup[:0], uint64(i+startOffset), 10)
for j := range mn.Tags {
mn.Tags[j].Value = strconv.AppendUint(mn.Tags[j].Value[:0], uint64(i*j), 16)
}
mn.sortTags()
metricName = mn.Marshal(metricName[:0])
if err := is.GetOrCreateTSIDByName(tsid, metricName); err != nil {
panic(fmt.Errorf("cannot insert record: %w", err))
}
}
}
func BenchmarkHeadPostingForMatchers(b *testing.B) {
// This benchmark is equivalent to https://github.com/prometheus/prometheus/blob/23c0299d85bfeb5d9b59e994861553a25ca578e5/tsdb/head_bench_test.go#L52
// See https://www.robustperception.io/evaluating-performance-and-correctness for more details.
s := newTestStorage()
defer stopTestStorage(s)
const dbName = "bench-head-posting-for-matchers"
db, err := openIndexDB(dbName, s)
if err != nil {
b.Fatalf("cannot open indexDB: %s", err)
}
defer func() {
db.MustClose()
if err := os.RemoveAll(dbName); err != nil {
b.Fatalf("cannot remove indexDB: %s", err)
}
}()
// Fill the db with data as in https://github.com/prometheus/prometheus/blob/23c0299d85bfeb5d9b59e994861553a25ca578e5/tsdb/head_bench_test.go#L66
var mn MetricName
var metricName []byte
var tsid TSID
addSeries := func(kvs ...string) {
mn.Reset()
for i := 0; i < len(kvs); i += 2 {
mn.AddTag(kvs[i], kvs[i+1])
}
mn.sortTags()
metricName = mn.Marshal(metricName[:0])
if err := db.createTSIDByName(&tsid, metricName); err != nil {
b.Fatalf("cannot insert record: %s", err)
}
}
for n := 0; n < 10; n++ {
ns := strconv.Itoa(n)
for i := 0; i < 100000; i++ {
is := strconv.Itoa(i)
addSeries("i", is, "n", ns, "j", "foo")
// Have some series that won't be matched, to properly test inverted matches.
addSeries("i", is, "n", ns, "j", "bar")
addSeries("i", is, "n", "0_"+ns, "j", "bar")
addSeries("i", is, "n", "1_"+ns, "j", "bar")
addSeries("i", is, "n", "2_"+ns, "j", "foo")
}
}
// Make sure all the items can be searched.
db.tb.DebugFlush()
b.ResetTimer()
benchSearch := func(b *testing.B, tfs *TagFilters, expectedMetricIDs int) {
is := db.getIndexSearch(noDeadline)
defer db.putIndexSearch(is)
tfss := []*TagFilters{tfs}
tr := TimeRange{
MinTimestamp: 0,
MaxTimestamp: timestampFromTime(time.Now()),
}
for i := 0; i < b.N; i++ {
metricIDs, err := is.searchMetricIDs(tfss, tr, 2e9)
if err != nil {
b.Fatalf("unexpected error in searchMetricIDs: %s", err)
}
if len(metricIDs) != expectedMetricIDs {
b.Fatalf("unexpected metricIDs found; got %d; want %d", len(metricIDs), expectedMetricIDs)
}
}
}
addTagFilter := func(tfs *TagFilters, key, value string, isNegative, isRegexp bool) {
if err := tfs.Add([]byte(key), []byte(value), isNegative, isRegexp); err != nil {
b.Fatalf("cannot add tag filter %q=%q, isNegative=%v, isRegexp=%v", key, value, isNegative, isRegexp)
}
}
b.Run(`n="1"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "n", "1", false, false)
benchSearch(b, tfs, 2e5)
})
b.Run(`n="1",j="foo"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "n", "1", false, false)
addTagFilter(tfs, "j", "foo", false, false)
benchSearch(b, tfs, 1e5)
})
b.Run(`j="foo",n="1"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "j", "foo", false, false)
addTagFilter(tfs, "n", "1", false, false)
benchSearch(b, tfs, 1e5)
})
b.Run(`n="1",j!="foo"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "n", "1", false, false)
addTagFilter(tfs, "j", "foo", true, false)
benchSearch(b, tfs, 1e5)
})
b.Run(`i=~".*"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "i", ".*", false, true)
benchSearch(b, tfs, 5e6)
})
b.Run(`i=~".+"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "i", ".+", false, true)
benchSearch(b, tfs, 5e6)
})
b.Run(`i=~""`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "i", "", false, true)
benchSearch(b, tfs, 0)
})
b.Run(`i!=""`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "i", "", true, false)
benchSearch(b, tfs, 5e6)
})
b.Run(`n="1",i=~".*",j="foo"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "n", "1", false, false)
addTagFilter(tfs, "i", ".*", false, true)
addTagFilter(tfs, "j", "foo", false, false)
benchSearch(b, tfs, 1e5)
})
b.Run(`n="1",i=~".*",i!="2",j="foo"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "n", "1", false, false)
addTagFilter(tfs, "i", ".*", false, true)
addTagFilter(tfs, "i", "2", true, false)
addTagFilter(tfs, "j", "foo", false, false)
benchSearch(b, tfs, 1e5-1)
})
b.Run(`n="1",i!=""`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "n", "1", false, false)
addTagFilter(tfs, "i", "", true, false)
benchSearch(b, tfs, 2e5)
})
b.Run(`n="1",i!="",j="foo"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "n", "1", false, false)
addTagFilter(tfs, "i", "", true, false)
addTagFilter(tfs, "j", "foo", false, false)
benchSearch(b, tfs, 1e5)
})
b.Run(`n="1",i=~".+",j="foo"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "n", "1", false, false)
addTagFilter(tfs, "i", ".+", false, true)
addTagFilter(tfs, "j", "foo", false, false)
benchSearch(b, tfs, 1e5)
})
b.Run(`n="1",i=~"1.+",j="foo"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "n", "1", false, false)
addTagFilter(tfs, "i", "1.+", false, true)
addTagFilter(tfs, "j", "foo", false, false)
benchSearch(b, tfs, 11110)
})
b.Run(`n="1",i=~".+",i!="2",j="foo"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "n", "1", false, false)
addTagFilter(tfs, "i", ".+", false, true)
addTagFilter(tfs, "i", "2", true, false)
addTagFilter(tfs, "j", "foo", false, false)
benchSearch(b, tfs, 1e5-1)
})
b.Run(`n="1",i=~".+",i!~"2.*",j="foo"`, func(b *testing.B) {
tfs := NewTagFilters()
addTagFilter(tfs, "n", "1", false, false)
addTagFilter(tfs, "i", ".+", false, true)
addTagFilter(tfs, "i", "2.*", true, true)
addTagFilter(tfs, "j", "foo", false, false)
benchSearch(b, tfs, 88889)
})
}
func BenchmarkIndexDBGetTSIDs(b *testing.B) {
s := newTestStorage()
defer stopTestStorage(s)
const dbName = "bench-index-db-get-tsids"
db, err := openIndexDB(dbName, s)
if err != nil {
b.Fatalf("cannot open indexDB: %s", err)
}
defer func() {
db.MustClose()
if err := os.RemoveAll(dbName); err != nil {
b.Fatalf("cannot remove indexDB: %s", err)
}
}()
const recordsPerLoop = 1000
const recordsCount = 1e5
// Fill the db with recordsCount records.
var mn MetricName
mn.MetricGroup = []byte("rps")
for i := 0; i < 2; i++ {
key := fmt.Sprintf("key_%d", i)
value := fmt.Sprintf("value_%d", i)
mn.AddTag(key, value)
}
var tsid TSID
var metricName []byte
is := db.getIndexSearch(noDeadline)
defer db.putIndexSearch(is)
for i := 0; i < recordsCount; i++ {
mn.sortTags()
metricName = mn.Marshal(metricName[:0])
if err := is.GetOrCreateTSIDByName(&tsid, metricName); err != nil {
b.Fatalf("cannot insert record: %s", err)
}
}
b.SetBytes(recordsPerLoop)
b.ReportAllocs()
b.ResetTimer()
b.RunParallel(func(pb *testing.PB) {
var tsidLocal TSID
var metricNameLocal []byte
mnLocal := mn
is := db.getIndexSearch(noDeadline)
defer db.putIndexSearch(is)
for pb.Next() {
for i := 0; i < recordsPerLoop; i++ {
mnLocal.sortTags()
metricNameLocal = mnLocal.Marshal(metricNameLocal[:0])
if err := is.GetOrCreateTSIDByName(&tsidLocal, metricNameLocal); err != nil {
panic(fmt.Errorf("cannot obtain tsid: %w", err))
}
}
}
})
b.StopTimer()
}