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// 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 cmd
import (
"os"
"time"
"go.uber.org/zap"
"go.etcd.io/etcd/server/v3/lease"
"go.etcd.io/etcd/server/v3/mvcc"
"go.etcd.io/etcd/server/v3/mvcc/backend"
"github.com/spf13/cobra"
)
var (
batchInterval int
batchLimit int
s mvcc.KV
)
func initMVCC() {
bcfg := backend.DefaultBackendConfig()
bcfg.Path, bcfg.BatchInterval, bcfg.BatchLimit = "mvcc-bench", time.Duration(batchInterval)*time.Millisecond, batchLimit
be := backend.New(bcfg)
s = mvcc.NewStore(zap.NewExample(), be, &lease.FakeLessor{}, mvcc.StoreConfig{})
os.Remove("mvcc-bench") // boltDB has an opened fd, so removing the file is ok
}
// mvccCmd represents the MVCC storage benchmarking tools
var mvccCmd = &cobra.Command{
Use: "mvcc",
Short: "Benchmark mvcc",
Long: `storage subcommand is a set of various benchmark tools for MVCC storage subsystem of etcd.
Actual benchmarks are implemented as its subcommands.`,
PersistentPreRun: mvccPreRun,
}
func init() {
RootCmd.AddCommand(mvccCmd)
mvccCmd.PersistentFlags().IntVar(&batchInterval, "batch-interval", 100, "Interval of batching (milliseconds)")
mvccCmd.PersistentFlags().IntVar(&batchLimit, "batch-limit", 10000, "A limit of batched transaction")
}
func mvccPreRun(cmd *cobra.Command, args []string) {
initMVCC()
}
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