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0d88e0d111
msgappv2 stream is used to send all MsgApp, and replaces the functionality of msgapp stream. Compared to v1, it has several advantanges: 1. The output message is exactly the same with the input one, which cannot be done in v1. 2. It uses one connection to stream persistently, which prevents message reorder and saves the time to request stream. 3. It transmits 10 addiontional bytes in the procedure of committing one proposal, which is trivia for idle time. 4. It transmits less bytes when committing mutliple proposals or keep committing proposals.
100 lines
2.4 KiB
Go
100 lines
2.4 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 rafthttp
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import (
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"net/http"
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"net/http/httptest"
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"sync"
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"testing"
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"time"
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"github.com/coreos/etcd/Godeps/_workspace/src/golang.org/x/net/context"
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"github.com/coreos/etcd/etcdserver/stats"
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"github.com/coreos/etcd/pkg/types"
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"github.com/coreos/etcd/raft"
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"github.com/coreos/etcd/raft/raftpb"
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)
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func BenchmarkSendingMsgApp(b *testing.B) {
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// member 1
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tr := NewTransporter(&http.Transport{}, types.ID(1), types.ID(1), &fakeRaft{}, nil, newServerStats(), stats.NewLeaderStats("1"))
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srv := httptest.NewServer(tr.Handler())
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defer srv.Close()
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// member 2
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r := &countRaft{}
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tr2 := NewTransporter(&http.Transport{}, types.ID(2), types.ID(1), r, nil, newServerStats(), stats.NewLeaderStats("2"))
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srv2 := httptest.NewServer(tr2.Handler())
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defer srv2.Close()
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tr.AddPeer(types.ID(2), []string{srv2.URL})
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defer tr.Stop()
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tr2.AddPeer(types.ID(1), []string{srv.URL})
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defer tr2.Stop()
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if !waitStreamWorking(tr.(*transport).Get(types.ID(2)).(*peer)) {
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b.Fatalf("stream from 1 to 2 is not in work as expected")
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}
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b.ReportAllocs()
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b.SetBytes(64)
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b.ResetTimer()
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data := make([]byte, 64)
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for i := 0; i < b.N; i++ {
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tr.Send([]raftpb.Message{
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{
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Type: raftpb.MsgApp,
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From: 1,
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To: 2,
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Index: uint64(i),
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Entries: []raftpb.Entry{
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{
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Index: uint64(i + 1),
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Data: data,
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},
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},
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},
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})
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}
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// wait until all messages are received by the target raft
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for r.count() != b.N {
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time.Sleep(time.Millisecond)
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}
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b.StopTimer()
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}
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type countRaft struct {
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mu sync.Mutex
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cnt int
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}
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func (r *countRaft) Process(ctx context.Context, m raftpb.Message) error {
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r.mu.Lock()
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defer r.mu.Unlock()
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r.cnt++
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return nil
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}
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func (r *countRaft) ReportUnreachable(id uint64) {}
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func (r *countRaft) ReportSnapshot(id uint64, status raft.SnapshotStatus) {}
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func (r *countRaft) count() int {
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r.mu.Lock()
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defer r.mu.Unlock()
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return r.cnt
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}
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