swh:1:snp:272e298efac7922bc58929ef447c6a9add2959f8
Tip revision: 1b3ac99e8a431b381e633802cc42fe70e663baf5 authored by Gyuho Lee on 22 January 2018, 19:31:16 UTC
version: 3.2.15
version: 3.2.15
Tip revision: 1b3ac99
kvstore_bench_test.go
// Copyright 2015 The etcd 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 mvcc
import (
"sync/atomic"
"testing"
"github.com/coreos/etcd/lease"
"github.com/coreos/etcd/mvcc/backend"
)
type fakeConsistentIndex uint64
func (i *fakeConsistentIndex) ConsistentIndex() uint64 {
return atomic.LoadUint64((*uint64)(i))
}
func BenchmarkStorePut(b *testing.B) {
var i fakeConsistentIndex
be, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(be, &lease.FakeLessor{}, &i)
defer cleanup(s, be, tmpPath)
// arbitrary number of bytes
bytesN := 64
keys := createBytesSlice(bytesN, b.N)
vals := createBytesSlice(bytesN, b.N)
b.ResetTimer()
for i := 0; i < b.N; i++ {
s.Put(keys[i], vals[i], lease.NoLease)
}
}
// BenchmarkStoreTxnPutUpdate is same as above, but instead updates single key
func BenchmarkStorePutUpdate(b *testing.B) {
var i fakeConsistentIndex
be, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(be, &lease.FakeLessor{}, &i)
defer cleanup(s, be, tmpPath)
// arbitrary number of bytes
keys := createBytesSlice(64, 1)
vals := createBytesSlice(1024, 1)
b.ResetTimer()
for i := 0; i < b.N; i++ {
s.Put(keys[0], vals[0], lease.NoLease)
}
}
// BenchmarkStoreTxnPut benchmarks the Put operation
// with transaction begin and end, where transaction involves
// some synchronization operations, such as mutex locking.
func BenchmarkStoreTxnPut(b *testing.B) {
var i fakeConsistentIndex
be, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(be, &lease.FakeLessor{}, &i)
defer cleanup(s, be, tmpPath)
// arbitrary number of bytes
bytesN := 64
keys := createBytesSlice(bytesN, b.N)
vals := createBytesSlice(bytesN, b.N)
b.ResetTimer()
for i := 0; i < b.N; i++ {
txn := s.Write()
txn.Put(keys[i], vals[i], lease.NoLease)
txn.End()
}
}
// benchmarkStoreRestore benchmarks the restore operation
func benchmarkStoreRestore(revsPerKey int, b *testing.B) {
var i fakeConsistentIndex
be, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(be, &lease.FakeLessor{}, &i)
// use closure to capture 's' to pick up the reassignment
defer func() { cleanup(s, be, tmpPath) }()
// arbitrary number of bytes
bytesN := 64
keys := createBytesSlice(bytesN, b.N)
vals := createBytesSlice(bytesN, b.N)
for i := 0; i < b.N; i++ {
for j := 0; j < revsPerKey; j++ {
txn := s.Write()
txn.Put(keys[i], vals[i], lease.NoLease)
txn.End()
}
}
s.Close()
b.ReportAllocs()
b.ResetTimer()
s = NewStore(be, &lease.FakeLessor{}, &i)
}
func BenchmarkStoreRestoreRevs1(b *testing.B) {
benchmarkStoreRestore(1, b)
}
func BenchmarkStoreRestoreRevs10(b *testing.B) {
benchmarkStoreRestore(10, b)
}
func BenchmarkStoreRestoreRevs20(b *testing.B) {
benchmarkStoreRestore(20, b)
}