mirror of
https://github.com/prometheus/prometheus.git
synced 2024-09-20 07:47:31 -07:00
ed172a6667
Don't calculate postings beforehand: we may not need them. If all matchers are for the requested label, we can just filter its values. Also, if there are no values at all, no need to run any kind of logic. Also add more labelValuesWithMatchers benchmarks Signed-off-by: Oleg Zaytsev <mail@olegzaytsev.com>
310 lines
11 KiB
Go
310 lines
11 KiB
Go
// Copyright 2018 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package tsdb
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"strconv"
|
|
"testing"
|
|
|
|
"github.com/prometheus/prometheus/model/labels"
|
|
"github.com/prometheus/prometheus/tsdb/index"
|
|
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
// Make entries ~50B in size, to emulate real-world high cardinality.
|
|
const (
|
|
postingsBenchSuffix = "aaaaaaaaaabbbbbbbbbbccccccccccdddddddddd"
|
|
)
|
|
|
|
func BenchmarkQuerier(b *testing.B) {
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = 1000
|
|
opts.ChunkDirRoot = b.TempDir()
|
|
h, err := NewHead(nil, nil, nil, nil, opts, nil)
|
|
require.NoError(b, err)
|
|
defer func() {
|
|
require.NoError(b, h.Close())
|
|
}()
|
|
|
|
app := h.Appender(context.Background())
|
|
addSeries := func(l labels.Labels) {
|
|
app.Append(0, l, 0, 0)
|
|
}
|
|
|
|
for n := 0; n < 10; n++ {
|
|
for i := 0; i < 100000; i++ {
|
|
addSeries(labels.FromStrings("i", strconv.Itoa(i)+postingsBenchSuffix, "n", strconv.Itoa(n)+postingsBenchSuffix, "j", "foo"))
|
|
// Have some series that won't be matched, to properly test inverted matches.
|
|
addSeries(labels.FromStrings("i", strconv.Itoa(i)+postingsBenchSuffix, "n", strconv.Itoa(n)+postingsBenchSuffix, "j", "bar"))
|
|
addSeries(labels.FromStrings("i", strconv.Itoa(i)+postingsBenchSuffix, "n", "0_"+strconv.Itoa(n)+postingsBenchSuffix, "j", "bar"))
|
|
addSeries(labels.FromStrings("i", strconv.Itoa(i)+postingsBenchSuffix, "n", "1_"+strconv.Itoa(n)+postingsBenchSuffix, "j", "bar"))
|
|
addSeries(labels.FromStrings("i", strconv.Itoa(i)+postingsBenchSuffix, "n", "2_"+strconv.Itoa(n)+postingsBenchSuffix, "j", "foo"))
|
|
}
|
|
}
|
|
require.NoError(b, app.Commit())
|
|
|
|
b.Run("Head", func(b *testing.B) {
|
|
ir, err := h.Index()
|
|
require.NoError(b, err)
|
|
defer func() {
|
|
require.NoError(b, ir.Close())
|
|
}()
|
|
|
|
b.Run("PostingsForMatchers", func(b *testing.B) {
|
|
benchmarkPostingsForMatchers(b, ir)
|
|
})
|
|
b.Run("labelValuesWithMatchers", func(b *testing.B) {
|
|
benchmarkLabelValuesWithMatchers(b, ir)
|
|
})
|
|
})
|
|
|
|
b.Run("Block", func(b *testing.B) {
|
|
blockdir := createBlockFromHead(b, b.TempDir(), h)
|
|
block, err := OpenBlock(nil, blockdir, nil)
|
|
require.NoError(b, err)
|
|
defer func() {
|
|
require.NoError(b, block.Close())
|
|
}()
|
|
|
|
ir, err := block.Index()
|
|
require.NoError(b, err)
|
|
defer func() {
|
|
require.NoError(b, ir.Close())
|
|
}()
|
|
|
|
b.Run("PostingsForMatchers", func(b *testing.B) {
|
|
benchmarkPostingsForMatchers(b, ir)
|
|
})
|
|
b.Run("labelValuesWithMatchers", func(b *testing.B) {
|
|
benchmarkLabelValuesWithMatchers(b, ir)
|
|
})
|
|
})
|
|
}
|
|
|
|
func benchmarkPostingsForMatchers(b *testing.B, ir IndexReader) {
|
|
ctx := context.Background()
|
|
|
|
n1 := labels.MustNewMatcher(labels.MatchEqual, "n", "1"+postingsBenchSuffix)
|
|
nX := labels.MustNewMatcher(labels.MatchEqual, "n", "X"+postingsBenchSuffix)
|
|
|
|
jFoo := labels.MustNewMatcher(labels.MatchEqual, "j", "foo")
|
|
jNotFoo := labels.MustNewMatcher(labels.MatchNotEqual, "j", "foo")
|
|
|
|
iStar := labels.MustNewMatcher(labels.MatchRegexp, "i", "^.*$")
|
|
i1Star := labels.MustNewMatcher(labels.MatchRegexp, "i", "^1.*$")
|
|
iStar1 := labels.MustNewMatcher(labels.MatchRegexp, "i", "^.*1$")
|
|
iStar1Star := labels.MustNewMatcher(labels.MatchRegexp, "i", "^.*1.*$")
|
|
iPlus := labels.MustNewMatcher(labels.MatchRegexp, "i", "^.+$")
|
|
i1Plus := labels.MustNewMatcher(labels.MatchRegexp, "i", "^1.+$")
|
|
iEmptyRe := labels.MustNewMatcher(labels.MatchRegexp, "i", "^$")
|
|
iNotEmpty := labels.MustNewMatcher(labels.MatchNotEqual, "i", "")
|
|
iNot2 := labels.MustNewMatcher(labels.MatchNotEqual, "i", "2"+postingsBenchSuffix)
|
|
iNot2Star := labels.MustNewMatcher(labels.MatchNotRegexp, "i", "^2.*$")
|
|
iNotStar2Star := labels.MustNewMatcher(labels.MatchNotRegexp, "i", "^.*2.*$")
|
|
jFooBar := labels.MustNewMatcher(labels.MatchRegexp, "j", "foo|bar")
|
|
jXXXYYY := labels.MustNewMatcher(labels.MatchRegexp, "j", "XXX|YYY")
|
|
jXplus := labels.MustNewMatcher(labels.MatchRegexp, "j", "X.+")
|
|
iCharSet := labels.MustNewMatcher(labels.MatchRegexp, "i", "1[0-9]")
|
|
iAlternate := labels.MustNewMatcher(labels.MatchRegexp, "i", "(1|2|3|4|5|6|20|55)")
|
|
iNotAlternate := labels.MustNewMatcher(labels.MatchNotRegexp, "i", "(1|2|3|4|5|6|20|55)")
|
|
iXYZ := labels.MustNewMatcher(labels.MatchRegexp, "i", "X|Y|Z")
|
|
iNotXYZ := labels.MustNewMatcher(labels.MatchNotRegexp, "i", "X|Y|Z")
|
|
cases := []struct {
|
|
name string
|
|
matchers []*labels.Matcher
|
|
}{
|
|
{`n="1"`, []*labels.Matcher{n1}},
|
|
{`n="X"`, []*labels.Matcher{nX}},
|
|
{`n="1",j="foo"`, []*labels.Matcher{n1, jFoo}},
|
|
{`n="X",j="foo"`, []*labels.Matcher{nX, jFoo}},
|
|
{`j="foo",n="1"`, []*labels.Matcher{jFoo, n1}},
|
|
{`n="1",j!="foo"`, []*labels.Matcher{n1, jNotFoo}},
|
|
{`n="1",i!="2"`, []*labels.Matcher{n1, iNot2}},
|
|
{`n="X",j!="foo"`, []*labels.Matcher{nX, jNotFoo}},
|
|
{`i=~"1[0-9]",j=~"foo|bar"`, []*labels.Matcher{iCharSet, jFooBar}},
|
|
{`j=~"foo|bar"`, []*labels.Matcher{jFooBar}},
|
|
{`j=~"XXX|YYY"`, []*labels.Matcher{jXXXYYY}},
|
|
{`j=~"X.+"`, []*labels.Matcher{jXplus}},
|
|
{`i=~"(1|2|3|4|5|6|20|55)"`, []*labels.Matcher{iAlternate}},
|
|
{`i!~"(1|2|3|4|5|6|20|55)"`, []*labels.Matcher{iNotAlternate}},
|
|
{`i=~"X|Y|Z"`, []*labels.Matcher{iXYZ}},
|
|
{`i!~"X|Y|Z"`, []*labels.Matcher{iNotXYZ}},
|
|
{`i=~".*"`, []*labels.Matcher{iStar}},
|
|
{`i=~"1.*"`, []*labels.Matcher{i1Star}},
|
|
{`i=~".*1"`, []*labels.Matcher{iStar1}},
|
|
{`i=~".+"`, []*labels.Matcher{iPlus}},
|
|
{`i=~".+",j=~"X.+"`, []*labels.Matcher{iPlus, jXplus}},
|
|
{`i=~""`, []*labels.Matcher{iEmptyRe}},
|
|
{`i!=""`, []*labels.Matcher{iNotEmpty}},
|
|
{`n="1",i=~".*",j="foo"`, []*labels.Matcher{n1, iStar, jFoo}},
|
|
{`n="X",i=~".*",j="foo"`, []*labels.Matcher{nX, iStar, jFoo}},
|
|
{`n="1",i=~".*",i!="2",j="foo"`, []*labels.Matcher{n1, iStar, iNot2, jFoo}},
|
|
{`n="1",i!=""`, []*labels.Matcher{n1, iNotEmpty}},
|
|
{`n="1",i!="",j="foo"`, []*labels.Matcher{n1, iNotEmpty, jFoo}},
|
|
{`n="1",i!="",j=~"X.+"`, []*labels.Matcher{n1, iNotEmpty, jXplus}},
|
|
{`n="1",i!="",j=~"XXX|YYY"`, []*labels.Matcher{n1, iNotEmpty, jXXXYYY}},
|
|
{`n="1",i=~"X|Y|Z",j="foo"`, []*labels.Matcher{n1, iXYZ, jFoo}},
|
|
{`n="1",i!~"X|Y|Z",j="foo"`, []*labels.Matcher{n1, iNotXYZ, jFoo}},
|
|
{`n="1",i=~".+",j="foo"`, []*labels.Matcher{n1, iPlus, jFoo}},
|
|
{`n="1",i=~"1.+",j="foo"`, []*labels.Matcher{n1, i1Plus, jFoo}},
|
|
{`n="1",i=~".*1.*",j="foo"`, []*labels.Matcher{n1, iStar1Star, jFoo}},
|
|
{`n="1",i=~".+",i!="2",j="foo"`, []*labels.Matcher{n1, iPlus, iNot2, jFoo}},
|
|
{`n="1",i=~".+",i!~"2.*",j="foo"`, []*labels.Matcher{n1, iPlus, iNot2Star, jFoo}},
|
|
{`n="1",i=~".+",i!~".*2.*",j="foo"`, []*labels.Matcher{n1, iPlus, iNotStar2Star, jFoo}},
|
|
{`n="X",i=~".+",i!~".*2.*",j="foo"`, []*labels.Matcher{nX, iPlus, iNotStar2Star, jFoo}},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
b.Run(c.name, func(b *testing.B) {
|
|
b.ReportAllocs()
|
|
b.ResetTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := PostingsForMatchers(ctx, ir, c.matchers...)
|
|
require.NoError(b, err)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func benchmarkLabelValuesWithMatchers(b *testing.B, ir IndexReader) {
|
|
i1 := labels.MustNewMatcher(labels.MatchEqual, "i", "1")
|
|
i1Plus := labels.MustNewMatcher(labels.MatchRegexp, "i", "1.+")
|
|
i1PostingsBenchSuffix := labels.MustNewMatcher(labels.MatchEqual, "i", "1"+postingsBenchSuffix)
|
|
iSuffix := labels.MustNewMatcher(labels.MatchRegexp, "i", ".+ddd")
|
|
iStar := labels.MustNewMatcher(labels.MatchRegexp, "i", "^.*$")
|
|
jNotFoo := labels.MustNewMatcher(labels.MatchNotEqual, "j", "foo")
|
|
jXXXYYY := labels.MustNewMatcher(labels.MatchRegexp, "j", "XXX|YYY")
|
|
jXplus := labels.MustNewMatcher(labels.MatchRegexp, "j", "X.+")
|
|
n1 := labels.MustNewMatcher(labels.MatchEqual, "n", "1"+postingsBenchSuffix)
|
|
nX := labels.MustNewMatcher(labels.MatchNotEqual, "n", "X"+postingsBenchSuffix)
|
|
nPlus := labels.MustNewMatcher(labels.MatchRegexp, "n", "^.+$")
|
|
|
|
ctx := context.Background()
|
|
|
|
cases := []struct {
|
|
name string
|
|
labelName string
|
|
matchers []*labels.Matcher
|
|
}{
|
|
// i is never "1", this isn't matching anything.
|
|
{`i with i="1"`, "i", []*labels.Matcher{i1}},
|
|
// i has 100k values.
|
|
{`i with n="1"`, "i", []*labels.Matcher{n1}},
|
|
{`i with n="^.+$"`, "i", []*labels.Matcher{nPlus}},
|
|
{`i with n="1",j!="foo"`, "i", []*labels.Matcher{n1, jNotFoo}},
|
|
{`i with n="1",j=~"X.+"`, "i", []*labels.Matcher{n1, jXplus}},
|
|
{`i with n="1",j=~"XXX|YYY"`, "i", []*labels.Matcher{n1, jXXXYYY}},
|
|
{`i with n="X",j!="foo"`, "i", []*labels.Matcher{nX, jNotFoo}},
|
|
{`i with n="1",i=~"^.*$",j!="foo"`, "i", []*labels.Matcher{n1, iStar, jNotFoo}},
|
|
// matchers on i itself
|
|
{`i with i="1aaa...ddd"`, "i", []*labels.Matcher{i1PostingsBenchSuffix}},
|
|
{`i with i=~"1.+"`, "i", []*labels.Matcher{i1Plus}},
|
|
{`i with i=~"1.+",i=~".+ddd"`, "i", []*labels.Matcher{i1Plus, iSuffix}},
|
|
// n has 10 values.
|
|
{`n with j!="foo"`, "n", []*labels.Matcher{jNotFoo}},
|
|
{`n with i="1"`, "n", []*labels.Matcher{i1}},
|
|
{`n with i=~"1.+"`, "n", []*labels.Matcher{i1Plus}},
|
|
// there's no label "none"
|
|
{`none with i=~"1"`, "none", []*labels.Matcher{i1Plus}},
|
|
}
|
|
|
|
for _, c := range cases {
|
|
b.Run(c.name, func(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
_, err := labelValuesWithMatchers(ctx, ir, c.labelName, c.matchers...)
|
|
require.NoError(b, err)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func BenchmarkMergedStringIter(b *testing.B) {
|
|
numSymbols := 100000
|
|
s := make([]string, numSymbols)
|
|
for i := 0; i < numSymbols; i++ {
|
|
s[i] = fmt.Sprintf("symbol%v", i)
|
|
}
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
it := NewMergedStringIter(index.NewStringListIter(s), index.NewStringListIter(s))
|
|
for j := 0; j < 100; j++ {
|
|
it = NewMergedStringIter(it, index.NewStringListIter(s))
|
|
}
|
|
|
|
for it.Next() {
|
|
require.NotNil(b, it.At())
|
|
require.NoError(b, it.Err())
|
|
}
|
|
}
|
|
|
|
b.ReportAllocs()
|
|
}
|
|
|
|
func BenchmarkQuerierSelect(b *testing.B) {
|
|
opts := DefaultHeadOptions()
|
|
opts.ChunkRange = 1000
|
|
opts.ChunkDirRoot = b.TempDir()
|
|
h, err := NewHead(nil, nil, nil, nil, opts, nil)
|
|
require.NoError(b, err)
|
|
defer h.Close()
|
|
app := h.Appender(context.Background())
|
|
numSeries := 1000000
|
|
for i := 0; i < numSeries; i++ {
|
|
app.Append(0, labels.FromStrings("foo", "bar", "i", fmt.Sprintf("%d%s", i, postingsBenchSuffix)), int64(i), 0)
|
|
}
|
|
require.NoError(b, app.Commit())
|
|
|
|
bench := func(b *testing.B, br BlockReader, sorted bool) {
|
|
matcher := labels.MustNewMatcher(labels.MatchEqual, "foo", "bar")
|
|
for s := 1; s <= numSeries; s *= 10 {
|
|
b.Run(fmt.Sprintf("%dof%d", s, numSeries), func(b *testing.B) {
|
|
q, err := NewBlockQuerier(br, 0, int64(s-1))
|
|
require.NoError(b, err)
|
|
|
|
b.ResetTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
ss := q.Select(context.Background(), sorted, nil, matcher)
|
|
for ss.Next() {
|
|
}
|
|
require.NoError(b, ss.Err())
|
|
}
|
|
q.Close()
|
|
})
|
|
}
|
|
}
|
|
|
|
b.Run("Head", func(b *testing.B) {
|
|
bench(b, h, false)
|
|
})
|
|
b.Run("SortedHead", func(b *testing.B) {
|
|
bench(b, h, true)
|
|
})
|
|
|
|
tmpdir := b.TempDir()
|
|
|
|
blockdir := createBlockFromHead(b, tmpdir, h)
|
|
block, err := OpenBlock(nil, blockdir, nil)
|
|
require.NoError(b, err)
|
|
defer func() {
|
|
require.NoError(b, block.Close())
|
|
}()
|
|
|
|
b.Run("Block", func(b *testing.B) {
|
|
bench(b, block, false)
|
|
})
|
|
}
|