https://github.com/etcd-io/etcd
Tip revision: dc3e02728863044a793666b258be8a32f2929061 authored by Yicheng Qin on 28 August 2015, 17:26:32 UTC
*: bump to v2.2.0-rc.0
*: bump to v2.2.0-rc.0
Tip revision: dc3e027
store_bench_test.go
// Copyright 2015 CoreOS, Inc.
//
// 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 store
import (
"encoding/json"
"fmt"
"runtime"
"testing"
)
func BenchmarkStoreSet128Bytes(b *testing.B) {
benchStoreSet(b, 128, nil)
}
func BenchmarkStoreSet1024Bytes(b *testing.B) {
benchStoreSet(b, 1024, nil)
}
func BenchmarkStoreSet4096Bytes(b *testing.B) {
benchStoreSet(b, 4096, nil)
}
func BenchmarkStoreSetWithJson128Bytes(b *testing.B) {
benchStoreSet(b, 128, json.Marshal)
}
func BenchmarkStoreSetWithJson1024Bytes(b *testing.B) {
benchStoreSet(b, 1024, json.Marshal)
}
func BenchmarkStoreSetWithJson4096Bytes(b *testing.B) {
benchStoreSet(b, 4096, json.Marshal)
}
func BenchmarkStoreDelete(b *testing.B) {
b.StopTimer()
s := newStore()
kvs, _ := generateNRandomKV(b.N, 128)
memStats := new(runtime.MemStats)
runtime.GC()
runtime.ReadMemStats(memStats)
for i := 0; i < b.N; i++ {
_, err := s.Set(kvs[i][0], false, kvs[i][1], Permanent)
if err != nil {
panic(err)
}
}
setMemStats := new(runtime.MemStats)
runtime.GC()
runtime.ReadMemStats(setMemStats)
b.StartTimer()
for i := range kvs {
s.Delete(kvs[i][0], false, false)
}
b.StopTimer()
// clean up
e, err := s.Get("/", false, false)
if err != nil {
panic(err)
}
for _, n := range e.Node.Nodes {
_, err := s.Delete(n.Key, true, true)
if err != nil {
panic(err)
}
}
s.WatcherHub.EventHistory = nil
deleteMemStats := new(runtime.MemStats)
runtime.GC()
runtime.ReadMemStats(deleteMemStats)
fmt.Printf("\nBefore set Alloc: %v; After set Alloc: %v, After delete Alloc: %v\n",
memStats.Alloc/1000, setMemStats.Alloc/1000, deleteMemStats.Alloc/1000)
}
func BenchmarkWatch(b *testing.B) {
b.StopTimer()
s := newStore()
kvs, _ := generateNRandomKV(b.N, 128)
b.StartTimer()
memStats := new(runtime.MemStats)
runtime.GC()
runtime.ReadMemStats(memStats)
for i := 0; i < b.N; i++ {
w, _ := s.Watch(kvs[i][0], false, false, 0)
e := newEvent("set", kvs[i][0], uint64(i+1), uint64(i+1))
s.WatcherHub.notify(e)
<-w.EventChan()
s.CurrentIndex++
}
s.WatcherHub.EventHistory = nil
afterMemStats := new(runtime.MemStats)
runtime.GC()
runtime.ReadMemStats(afterMemStats)
fmt.Printf("\nBefore Alloc: %v; After Alloc: %v\n",
memStats.Alloc/1000, afterMemStats.Alloc/1000)
}
func BenchmarkWatchWithSet(b *testing.B) {
b.StopTimer()
s := newStore()
kvs, _ := generateNRandomKV(b.N, 128)
b.StartTimer()
for i := 0; i < b.N; i++ {
w, _ := s.Watch(kvs[i][0], false, false, 0)
s.Set(kvs[i][0], false, "test", Permanent)
<-w.EventChan()
}
}
func BenchmarkWatchWithSetBatch(b *testing.B) {
b.StopTimer()
s := newStore()
kvs, _ := generateNRandomKV(b.N, 128)
b.StartTimer()
watchers := make([]Watcher, b.N)
for i := 0; i < b.N; i++ {
watchers[i], _ = s.Watch(kvs[i][0], false, false, 0)
}
for i := 0; i < b.N; i++ {
s.Set(kvs[i][0], false, "test", Permanent)
}
for i := 0; i < b.N; i++ {
<-watchers[i].EventChan()
}
}
func BenchmarkWatchOneKey(b *testing.B) {
s := newStore()
watchers := make([]Watcher, b.N)
for i := 0; i < b.N; i++ {
watchers[i], _ = s.Watch("/foo", false, false, 0)
}
s.Set("/foo", false, "", Permanent)
for i := 0; i < b.N; i++ {
<-watchers[i].EventChan()
}
}
func benchStoreSet(b *testing.B, valueSize int, process func(interface{}) ([]byte, error)) {
s := newStore()
b.StopTimer()
kvs, size := generateNRandomKV(b.N, valueSize)
b.StartTimer()
for i := 0; i < b.N; i++ {
resp, err := s.Set(kvs[i][0], false, kvs[i][1], Permanent)
if err != nil {
panic(err)
}
if process != nil {
_, err = process(resp)
if err != nil {
panic(err)
}
}
}
kvs = nil
b.StopTimer()
memStats := new(runtime.MemStats)
runtime.GC()
runtime.ReadMemStats(memStats)
fmt.Printf("\nAlloc: %vKB; Data: %vKB; Kvs: %v; Alloc/Data:%v\n",
memStats.Alloc/1000, size/1000, b.N, memStats.Alloc/size)
}
func generateNRandomKV(n int, valueSize int) ([][]string, uint64) {
var size uint64
kvs := make([][]string, n)
bytes := make([]byte, valueSize)
for i := 0; i < n; i++ {
kvs[i] = make([]string, 2)
kvs[i][0] = fmt.Sprintf("/%010d/%010d/%010d", n, n, n)
kvs[i][1] = string(bytes)
size = size + uint64(len(kvs[i][0])) + uint64(len(kvs[i][1]))
}
return kvs, size
}