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/*
*
* 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 provides a server used for benchmarking. It launches a server
which is listening on port 50051. An example to start the server can be found
at:
go run benchmark/server/main.go -test_name=grpc_test
After starting the server, the client can be run separately and used to test
qps and latency.
*/
package main
import (
"flag"
"fmt"
"net"
_ "net/http/pprof"
"os"
"os/signal"
"runtime"
"runtime/pprof"
"time"
"google.golang.org/grpc/benchmark"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal/syscall"
)
var (
port = flag.String("port", "50051", "Localhost port to listen on.")
testName = flag.String("test_name", "", "Name of the test used for creating profiles.")
logger = grpclog.Component("benchmark")
)
func main() {
flag.Parse()
if *testName == "" {
logger.Fatal("-test_name not set")
}
lis, err := net.Listen("tcp", ":"+*port)
if err != nil {
logger.Fatalf("Failed to listen: %v", err)
}
defer lis.Close()
cf, err := os.Create("/tmp/" + *testName + ".cpu")
if err != nil {
logger.Fatalf("Failed to create file: %v", err)
}
defer cf.Close()
pprof.StartCPUProfile(cf)
cpuBeg := syscall.GetCPUTime()
// Launch server in a separate goroutine.
stop := benchmark.StartServer(benchmark.ServerInfo{Type: "protobuf", Listener: lis})
// Wait on OS terminate signal.
ch := make(chan os.Signal, 1)
signal.Notify(ch, os.Interrupt)
<-ch
cpu := time.Duration(syscall.GetCPUTime() - cpuBeg)
stop()
pprof.StopCPUProfile()
mf, err := os.Create("/tmp/" + *testName + ".mem")
if err != nil {
logger.Fatalf("Failed to create file: %v", err)
}
defer mf.Close()
runtime.GC() // materialize all statistics
if err := pprof.WriteHeapProfile(mf); err != nil {
logger.Fatalf("Failed to write memory profile: %v", err)
}
fmt.Println("Server CPU utilization:", cpu)
fmt.Println("Server CPU profile:", cf.Name())
fmt.Println("Server Mem Profile:", mf.Name())
}
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