tusd/vendor/google.golang.org/grpc/benchmark/client/main.go

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2017-11-20 21:35:32 +00:00
/*
*
* Copyright 2017 gRPC 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 main
import (
"flag"
"math"
"net"
"net/http"
_ "net/http/pprof"
"sync"
"time"
"golang.org/x/net/context"
"google.golang.org/grpc"
"google.golang.org/grpc/benchmark"
testpb "google.golang.org/grpc/benchmark/grpc_testing"
"google.golang.org/grpc/benchmark/stats"
"google.golang.org/grpc/grpclog"
)
var (
server = flag.String("server", "", "The server address")
maxConcurrentRPCs = flag.Int("max_concurrent_rpcs", 1, "The max number of concurrent RPCs")
duration = flag.Int("duration", math.MaxInt32, "The duration in seconds to run the benchmark client")
trace = flag.Bool("trace", true, "Whether tracing is on")
rpcType = flag.Int("rpc_type", 0,
`Configure different client rpc type. Valid options are:
0 : unary call;
1 : streaming call.`)
)
func unaryCaller(client testpb.BenchmarkServiceClient) {
benchmark.DoUnaryCall(client, 1, 1)
}
func streamCaller(stream testpb.BenchmarkService_StreamingCallClient) {
benchmark.DoStreamingRoundTrip(stream, 1, 1)
}
func buildConnection() (s *stats.Stats, conn *grpc.ClientConn, tc testpb.BenchmarkServiceClient) {
s = stats.NewStats(256)
conn = benchmark.NewClientConn(*server)
tc = testpb.NewBenchmarkServiceClient(conn)
return s, conn, tc
}
func closeLoopUnary() {
s, conn, tc := buildConnection()
for i := 0; i < 100; i++ {
unaryCaller(tc)
}
ch := make(chan int, *maxConcurrentRPCs*4)
var (
mu sync.Mutex
wg sync.WaitGroup
)
wg.Add(*maxConcurrentRPCs)
for i := 0; i < *maxConcurrentRPCs; i++ {
go func() {
for range ch {
start := time.Now()
unaryCaller(tc)
elapse := time.Since(start)
mu.Lock()
s.Add(elapse)
mu.Unlock()
}
wg.Done()
}()
}
// Stop the client when time is up.
done := make(chan struct{})
go func() {
<-time.After(time.Duration(*duration) * time.Second)
close(done)
}()
ok := true
for ok {
select {
case ch <- 0:
case <-done:
ok = false
}
}
close(ch)
wg.Wait()
conn.Close()
grpclog.Println(s.String())
}
func closeLoopStream() {
s, conn, tc := buildConnection()
ch := make(chan int, *maxConcurrentRPCs*4)
var (
mu sync.Mutex
wg sync.WaitGroup
)
wg.Add(*maxConcurrentRPCs)
// Distribute RPCs over maxConcurrentCalls workers.
for i := 0; i < *maxConcurrentRPCs; i++ {
go func() {
stream, err := tc.StreamingCall(context.Background())
if err != nil {
grpclog.Fatalf("%v.StreamingCall(_) = _, %v", tc, err)
}
// Do some warm up.
for i := 0; i < 100; i++ {
streamCaller(stream)
}
for range ch {
start := time.Now()
streamCaller(stream)
elapse := time.Since(start)
mu.Lock()
s.Add(elapse)
mu.Unlock()
}
wg.Done()
}()
}
// Stop the client when time is up.
done := make(chan struct{})
go func() {
<-time.After(time.Duration(*duration) * time.Second)
close(done)
}()
ok := true
for ok {
select {
case ch <- 0:
case <-done:
ok = false
}
}
close(ch)
wg.Wait()
conn.Close()
grpclog.Println(s.String())
}
func main() {
flag.Parse()
grpc.EnableTracing = *trace
go func() {
lis, err := net.Listen("tcp", ":0")
if err != nil {
grpclog.Fatalf("Failed to listen: %v", err)
}
grpclog.Println("Client profiling address: ", lis.Addr().String())
if err := http.Serve(lis, nil); err != nil {
grpclog.Fatalf("Failed to serve: %v", err)
}
}()
switch *rpcType {
case 0:
closeLoopUnary()
case 1:
closeLoopStream()
}
}