prometheus/tsdb/head_bench_test.go

100 lines
2.8 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 (
"io/ioutil"
"os"
"strconv"
"testing"
"github.com/pkg/errors"
"github.com/stretchr/testify/require"
"go.uber.org/atomic"
"github.com/prometheus/prometheus/model/labels"
)
func BenchmarkHeadStripeSeriesCreate(b *testing.B) {
chunkDir, err := ioutil.TempDir("", "chunk_dir")
require.NoError(b, err)
defer func() {
require.NoError(b, os.RemoveAll(chunkDir))
}()
// Put a series, select it. GC it and then access it.
opts := DefaultHeadOptions()
opts.ChunkRange = 1000
opts.ChunkDirRoot = chunkDir
h, err := NewHead(nil, nil, nil, opts, nil)
require.NoError(b, err)
defer h.Close()
for i := 0; i < b.N; i++ {
h.getOrCreate(uint64(i), labels.FromStrings("a", strconv.Itoa(i)))
}
}
func BenchmarkHeadStripeSeriesCreateParallel(b *testing.B) {
chunkDir, err := ioutil.TempDir("", "chunk_dir")
require.NoError(b, err)
defer func() {
require.NoError(b, os.RemoveAll(chunkDir))
}()
// Put a series, select it. GC it and then access it.
opts := DefaultHeadOptions()
opts.ChunkRange = 1000
opts.ChunkDirRoot = chunkDir
h, err := NewHead(nil, nil, nil, opts, nil)
require.NoError(b, err)
defer h.Close()
var count atomic.Int64
b.RunParallel(func(pb *testing.PB) {
for pb.Next() {
i := count.Inc()
h.getOrCreate(uint64(i), labels.FromStrings("a", strconv.Itoa(int(i))))
}
})
}
func BenchmarkHeadStripeSeriesCreate_PreCreationFailure(b *testing.B) {
chunkDir, err := ioutil.TempDir("", "chunk_dir")
require.NoError(b, err)
defer func() {
require.NoError(b, os.RemoveAll(chunkDir))
}()
// Put a series, select it. GC it and then access it.
opts := DefaultHeadOptions()
opts.ChunkRange = 1000
opts.ChunkDirRoot = chunkDir
// Mock the PreCreation() callback to fail on each series.
opts.SeriesCallback = failingSeriesLifecycleCallback{}
h, err := NewHead(nil, nil, nil, opts, nil)
require.NoError(b, err)
defer h.Close()
for i := 0; i < b.N; i++ {
h.getOrCreate(uint64(i), labels.FromStrings("a", strconv.Itoa(i)))
}
}
type failingSeriesLifecycleCallback struct{}
func (failingSeriesLifecycleCallback) PreCreation(labels.Labels) error { return errors.New("failed") }
func (failingSeriesLifecycleCallback) PostCreation(labels.Labels) {}
func (failingSeriesLifecycleCallback) PostDeletion(...labels.Labels) {}