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add performance unit test for sendFlowRecords
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,269 @@ | ||
| // +build !race | ||
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| // Copyright 2021 Antrea 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. | ||
|
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| package exporter | ||
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| import ( | ||
| "flag" | ||
| "fmt" | ||
| "math/rand" | ||
| "net" | ||
| goruntime "runtime" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/golang/mock/gomock" | ||
| "k8s.io/klog" | ||
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| "antrea.io/antrea/pkg/agent/flowexporter" | ||
| "antrea.io/antrea/pkg/agent/flowexporter/connections" | ||
| connectionstest "antrea.io/antrea/pkg/agent/flowexporter/connections/testing" | ||
| "antrea.io/antrea/pkg/agent/flowexporter/flowrecords" | ||
| interfacestoretest "antrea.io/antrea/pkg/agent/interfacestore/testing" | ||
| proxytest "antrea.io/antrea/pkg/agent/proxy/testing" | ||
| "antrea.io/antrea/pkg/ipfix" | ||
| queriertest "antrea.io/antrea/pkg/querier/testing" | ||
| ) | ||
|
|
||
| const ( | ||
| testPollInterval = 2 * time.Second | ||
| testConnectionsCount = 30000 | ||
| testUpdateConnectionsCount = 20000 | ||
| testNewConnectionsCount = 4000 | ||
| testDyingConnectionsCount = 1000 | ||
| testZoneFilter = uint16(65520) | ||
| testDuration = 15 * time.Second | ||
| testIdleTimeOut = 5 * time.Second | ||
| testPerfActiveFlowTimeout = 2 * time.Second | ||
| testPerfIdleFlowTimeout = 1 * time.Second | ||
| ) | ||
|
|
||
| var count = 0 | ||
| var exp *flowExporter | ||
|
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| func BenchmarkExport(b *testing.B) { | ||
| disableLogToStderr() | ||
| ctrl := gomock.NewController(b) | ||
| defer ctrl.Finish() | ||
|
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| registry := ipfix.NewIPFIXRegistry() | ||
| registry.LoadRegistry() | ||
| stopChan1 := make(chan struct{}) | ||
| stopChan2 := make(chan struct{}) | ||
| listener := startLocalServer(b, stopChan1, stopChan2) | ||
|
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| conns := getConnections(testConnectionsCount) | ||
| records := flowrecords.NewFlowRecords() | ||
| mockIfaceStore := interfacestoretest.NewMockInterfaceStore(ctrl) | ||
| mockConnDumper := connectionstest.NewMockConnTrackDumper(ctrl) | ||
| mockProxier := proxytest.NewMockProxier(ctrl) | ||
| npQuerier := queriertest.NewMockAgentNetworkPolicyInfoQuerier(ctrl) | ||
| connStore := connections.NewConnectionStore(mockConnDumper, records, mockIfaceStore, true, false, mockProxier, npQuerier, testPollInterval) | ||
| var err error | ||
| exp, err = NewFlowExporter(connStore, records, listener.String(), listener.Network(), testPerfActiveFlowTimeout, testPerfIdleFlowTimeout, false, true, false, nil, nil, false) | ||
| if err != nil { | ||
| b.Errorf("error in starting flow exporter: %v", err) | ||
| } | ||
| // Generate connections for Dumpflows, each round with update connections, new connections and dying connections | ||
| mockConnDumper.EXPECT().DumpFlows(testZoneFilter).Return(conns, testConnectionsCount, nil).Times(1) | ||
| for i := 0; i < 5; i++ { | ||
| conns = getUpdateConnections(conns, testNewConnectionsCount, testUpdateConnectionsCount, testDyingConnectionsCount, i) | ||
| mockConnDumper.EXPECT().DumpFlows(testZoneFilter).Return(conns, len(conns), nil).Times(1) | ||
| } | ||
| mockConnDumper.EXPECT().DumpFlows(testZoneFilter).Return(conns, len(conns), nil).AnyTimes() | ||
| mockConnDumper.EXPECT().GetMaxConnections().Return(testConnectionsCount, nil).AnyTimes() | ||
| mockIfaceStore.EXPECT().GetInterfaceByIP(gomock.Any()).Return(nil, false).AnyTimes() | ||
|
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| var maxAlloc uint64 | ||
| go statMaxMemAlloc(&maxAlloc, 500*time.Millisecond, stopChan2) | ||
| go connStore.Run(stopChan1) | ||
| go exp.Run(stopChan2) | ||
| <-stopChan2 | ||
| b.Logf(`Summary metrics: | ||
| TOTAL_CONNECTIONS INIT_CONNECTIONS UPDATE_CONNECTIONS/poll NEW_CONNECTIONS/poll DYING_CONNECTIONS/poll POLL_INTERVAL(s) MEMORY(M) | ||
| %d %d %d %d %d %d %-12d | ||
| `, count, testConnectionsCount, testUpdateConnectionsCount, testNewConnectionsCount, testDyingConnectionsCount, testPollInterval/1000000, maxAlloc/1024/1024) | ||
| } | ||
|
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| func startLocalServer(b *testing.B, stopChan1, stopChan2 chan struct{}) (address net.Addr) { | ||
| udpAddr, err := net.ResolveUDPAddr("udp", "127.0.0.1:0") | ||
| if err != nil { | ||
| b.Fatalf("Got error when resolving UDP address: %v", err) | ||
| } | ||
| conn, err := net.ListenUDP("udp", udpAddr) | ||
| if err != nil { | ||
| b.Fatalf("Got error when creating a local server: %v", err) | ||
| } | ||
| if err != nil { | ||
| b.Fatalf("Got error when creating a local server: %v", err) | ||
| } | ||
| prevCount := 0 | ||
| ticker := time.NewTicker(testIdleTimeOut) | ||
| go func() { | ||
| defer conn.Close() | ||
| for { | ||
| buff := make([]byte, 198) | ||
| _, _, err := conn.ReadFromUDP(buff) | ||
| if err != nil { | ||
| b.Error(err) | ||
| return | ||
| } | ||
| count++ | ||
| } | ||
| }() | ||
| go func() { | ||
| time.Sleep(testDuration) | ||
| close(stopChan1) | ||
| for { | ||
| select { | ||
| case <-ticker.C: | ||
| if count > prevCount { | ||
| prevCount = count | ||
| continue | ||
| } else { | ||
| exp.process.CloseConnToCollector() | ||
| close(stopChan2) | ||
| } | ||
| } | ||
| } | ||
| }() | ||
| return conn.LocalAddr() | ||
| } | ||
|
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||
| func getConnections(numberOfConn int) []*flowexporter.Connection { | ||
| connections := make([]*flowexporter.Connection, numberOfConn) | ||
| for i := 0; i < numberOfConn; i++ { | ||
| randomNum := rand.Intn(255) | ||
| src := net.ParseIP(fmt.Sprintf("192.168.0.%d", randomNum)) | ||
| dst := net.ParseIP(fmt.Sprintf("192.169.0.%d", randomNum)) | ||
| tuple, revTuple := makeTuple(&src, &dst, 6, uint16(i), uint16(i)) | ||
| conn := &flowexporter.Connection{ | ||
| StartTime: time.Now().Add(-time.Duration(randomNum) * time.Millisecond), | ||
| StopTime: time.Now().Add(-time.Duration(randomNum) * time.Millisecond), | ||
| IsPresent: true, | ||
| DoneExport: false, | ||
| TupleOrig: tuple, | ||
| TupleReply: revTuple, | ||
| OriginalPackets: 100, | ||
| OriginalBytes: 10, | ||
| ReversePackets: 50, | ||
| ReverseBytes: 5, | ||
| SourcePodNamespace: "ns1", | ||
| SourcePodName: "pod1", | ||
| DestinationPodNamespace: "ns2", | ||
| DestinationPodName: "pod2", | ||
| DestinationServicePortName: "service", | ||
| TCPState: "SYN_SENT", | ||
| } | ||
| connections[i] = conn | ||
| } | ||
| return connections | ||
| } | ||
|
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| func getUpdateConnections(conns []*flowexporter.Connection, numOfNewConn int, numOfUpdateConn int, numOfDyingConn int, index int) []*flowexporter.Connection { | ||
| currentTime := time.Now().Add(time.Duration(index) * time.Second) | ||
| connections := make([]*flowexporter.Connection, 0) | ||
| randomNum := rand.Intn(len(conns) - numOfUpdateConn) | ||
|
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| // update connections and delete connections in dying state | ||
| for i := 0; i < randomNum; i++ { | ||
| if conns[i].TCPState == "TIME_WAIT" { | ||
| continue | ||
| } | ||
| conn := *conns[i] | ||
| connections = append(connections, &conn) | ||
| } | ||
| for i := randomNum; i < numOfUpdateConn+randomNum; i++ { | ||
| if conns[i].TCPState == "TIME_WAIT" { | ||
| continue | ||
| } | ||
| conn := *conns[i] | ||
| conn.OriginalPackets += 10 | ||
| conn.OriginalBytes += 10 | ||
| conn.ReversePackets += 5 | ||
| conn.ReverseBytes += 5 | ||
| rand := rand.Intn(1000) | ||
| conn.StopTime = currentTime.Add(-time.Duration(rand) * time.Millisecond) | ||
| connections = append(connections, &conn) | ||
| } | ||
| for i := numOfUpdateConn + randomNum; i < len(conns); i++ { | ||
| if conns[i].TCPState == "TIME_WAIT" { | ||
| continue | ||
| } | ||
| conn := *conns[i] | ||
| connections = append(connections, &conn) | ||
| } | ||
|
|
||
| // add new connections | ||
| for i := 0; i < numOfNewConn; i++ { | ||
| randomNum1 := rand.Intn(255) | ||
| randomNum2 := rand.Intn(255) | ||
| randomNum3 := rand.Intn(255) | ||
| src := net.ParseIP(fmt.Sprintf("192.%d.%d.%d", randomNum1, randomNum2, randomNum3)) | ||
| dst := net.ParseIP(fmt.Sprintf("192.%d.%d.%d", randomNum1, randomNum2, randomNum3)) | ||
| randomPort := rand.Intn(90000) | ||
| tuple, revTuple := makeTuple(&src, &dst, 6, uint16(randomPort), uint16(randomPort)) | ||
| conn := &flowexporter.Connection{ | ||
| StartTime: currentTime.Add(-time.Duration(randomNum1) * time.Millisecond), | ||
| StopTime: currentTime.Add(-time.Duration(randomNum1) * time.Millisecond), | ||
| IsPresent: true, | ||
| DoneExport: false, | ||
| TupleOrig: tuple, | ||
| TupleReply: revTuple, | ||
| OriginalPackets: 100, | ||
| OriginalBytes: 10, | ||
| ReversePackets: 50, | ||
| ReverseBytes: 5, | ||
| SourcePodNamespace: "ns1", | ||
| SourcePodName: "pod1", | ||
| DestinationPodNamespace: "ns2", | ||
| DestinationPodName: "pod2", | ||
| DestinationServicePortName: "service", | ||
| TCPState: "SYN_SENT", | ||
| } | ||
| connections = append(connections, conn) | ||
| } | ||
|
|
||
| // change connections to dying state, which will be deleted in next round | ||
| randomNum = rand.Intn(len(connections) - numOfDyingConn) | ||
| for i := randomNum; i < numOfDyingConn+randomNum; i++ { | ||
| connections[i].TCPState = "TIME_WAIT" | ||
| } | ||
| return connections | ||
| } | ||
|
|
||
| func statMaxMemAlloc(maxAlloc *uint64, interval time.Duration, stopCh chan struct{}) { | ||
| var memStats goruntime.MemStats | ||
| ticker := time.NewTicker(interval) | ||
| defer ticker.Stop() | ||
| for { | ||
| select { | ||
| case <-ticker.C: | ||
| goruntime.ReadMemStats(&memStats) | ||
| if memStats.Alloc > *maxAlloc { | ||
| *maxAlloc = memStats.Alloc | ||
| } | ||
| case <-stopCh: | ||
| return | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func disableLogToStderr() { | ||
| klogFlagSet := flag.NewFlagSet("klog", flag.ContinueOnError) | ||
| klog.InitFlags(klogFlagSet) | ||
| klogFlagSet.Parse([]string{"-logtostderr=false"}) | ||
| } |
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