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put.go
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put.go
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// 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 cmd
import (
"encoding/binary"
"fmt"
"math/rand"
"os"
"time"
"github.com/coreos/etcd/Godeps/_workspace/src/github.com/cheggaaa/pb"
"github.com/coreos/etcd/Godeps/_workspace/src/github.com/spf13/cobra"
"github.com/coreos/etcd/Godeps/_workspace/src/golang.org/x/net/context"
"github.com/coreos/etcd/Godeps/_workspace/src/google.golang.org/grpc"
"github.com/coreos/etcd/etcdserver/etcdserverpb"
)
// putCmd represents the put command
var putCmd = &cobra.Command{
Use: "put",
Short: "Benchmark put",
Run: putFunc,
}
var (
keySize int
valSize int
putTotal int
keySpaceSize int
seqKeys bool
)
func init() {
RootCmd.AddCommand(putCmd)
putCmd.Flags().IntVar(&keySize, "key-size", 8, "Key size of put request")
putCmd.Flags().IntVar(&valSize, "val-size", 8, "Value size of put request")
putCmd.Flags().IntVar(&putTotal, "total", 10000, "Total number of put requests")
putCmd.Flags().IntVar(&keySpaceSize, "key-space-size", 1, "Maximum possible keys")
putCmd.Flags().BoolVar(&seqKeys, "sequential-keys", false, "Use sequential keys")
}
func putFunc(cmd *cobra.Command, args []string) {
if keySpaceSize <= 0 {
fmt.Fprintf(os.Stderr, "expected positive --key-space-size, got (%v)", keySpaceSize)
os.Exit(1)
}
results = make(chan result)
requests := make(chan etcdserverpb.PutRequest, totalClients)
bar = pb.New(putTotal)
k, v := make([]byte, keySize), mustRandBytes(valSize)
conns := make([]*grpc.ClientConn, totalConns)
for i := range conns {
conns[i] = mustCreateConn()
}
clients := make([]etcdserverpb.KVClient, totalClients)
for i := range clients {
clients[i] = etcdserverpb.NewKVClient(conns[i%int(totalConns)])
}
bar.Format("Bom !")
bar.Start()
for i := range clients {
wg.Add(1)
go doPut(context.Background(), clients[i], requests)
}
pdoneC := printReport(results)
go func() {
for i := 0; i < putTotal; i++ {
if seqKeys {
binary.PutVarint(k, int64(i%keySpaceSize))
} else {
binary.PutVarint(k, int64(rand.Intn(keySpaceSize)))
}
requests <- etcdserverpb.PutRequest{Key: k, Value: v}
}
close(requests)
}()
wg.Wait()
bar.Finish()
close(results)
<-pdoneC
}
func doPut(ctx context.Context, client etcdserverpb.KVClient, requests <-chan etcdserverpb.PutRequest) {
defer wg.Done()
for r := range requests {
st := time.Now()
_, err := client.Put(ctx, &r)
var errStr string
if err != nil {
errStr = err.Error()
}
results <- result{errStr: errStr, duration: time.Since(st)}
bar.Increment()
}
}