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https://github.com/etcd-io/etcd.git
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382103af60
Reports depended on writing all results to a large buffered channel and reading from that synchronously. Similarly, requests were buffered the same way which can take significant memory on big request strings. Instead, have reports stream in results as they're produced then print when the results channel closes.
114 lines
2.5 KiB
Go
114 lines
2.5 KiB
Go
// Copyright 2015 CoreOS, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cmd
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import (
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"fmt"
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"os"
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"time"
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"github.com/coreos/etcd/Godeps/_workspace/src/github.com/cheggaaa/pb"
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"github.com/coreos/etcd/Godeps/_workspace/src/github.com/spf13/cobra"
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"github.com/coreos/etcd/Godeps/_workspace/src/golang.org/x/net/context"
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"github.com/coreos/etcd/Godeps/_workspace/src/google.golang.org/grpc"
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"github.com/coreos/etcd/etcdserver/etcdserverpb"
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)
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// rangeCmd represents the range command
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var rangeCmd = &cobra.Command{
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Use: "range key [end-range]",
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Short: "Benchmark range",
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Run: rangeFunc,
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}
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var (
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rangeTotal int
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)
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func init() {
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RootCmd.AddCommand(rangeCmd)
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rangeCmd.Flags().IntVar(&rangeTotal, "total", 10000, "Total number of range requests")
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}
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func rangeFunc(cmd *cobra.Command, args []string) {
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if len(args) == 0 || len(args) > 2 {
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fmt.Fprintln(os.Stderr, cmd.Usage())
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os.Exit(1)
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}
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k := []byte(args[0])
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var end []byte
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if len(args) == 1 {
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end = []byte(args[1])
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}
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results = make(chan result)
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requests := make(chan etcdserverpb.RangeRequest, totalClients)
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bar = pb.New(rangeTotal)
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conns := make([]*grpc.ClientConn, totalConns)
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for i := range conns {
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conns[i] = mustCreateConn()
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}
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clients := make([]etcdserverpb.KVClient, totalClients)
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for i := range clients {
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clients[i] = etcdserverpb.NewKVClient(conns[i%int(totalConns)])
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}
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bar.Format("Bom !")
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bar.Start()
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for i := range clients {
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wg.Add(1)
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go doRange(clients[i], requests)
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}
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pdoneC := printReport(results)
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go func() {
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for i := 0; i < rangeTotal; i++ {
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requests <- etcdserverpb.RangeRequest{
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Key: k,
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RangeEnd: end}
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}
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close(requests)
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}()
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wg.Wait()
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bar.Finish()
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close(results)
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<-pdoneC
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}
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func doRange(client etcdserverpb.KVClient, requests <-chan etcdserverpb.RangeRequest) {
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defer wg.Done()
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for req := range requests {
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st := time.Now()
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_, err := client.Range(context.Background(), &req)
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var errStr string
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if err != nil {
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errStr = err.Error()
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}
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results <- result{errStr: errStr, duration: time.Since(st)}
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bar.Increment()
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}
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}
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