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// Copyright 2020 The gVisor 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 network
import (
"context"
"os"
"testing"
"gvisor.dev/gvisor/pkg/test/dockerutil"
"gvisor.dev/gvisor/pkg/test/testutil"
"gvisor.dev/gvisor/test/benchmarks/harness"
"gvisor.dev/gvisor/test/benchmarks/tools"
)
var h harness.Harness
func BenchmarkIperf(b *testing.B) {
iperf := tools.Iperf{
Time: b.N, // time in seconds to run client.
}
clientMachine, err := h.GetMachine()
if err != nil {
b.Fatalf("failed to get machine: %v", err)
}
defer clientMachine.CleanUp()
serverMachine, err := h.GetMachine()
if err != nil {
b.Fatalf("failed to get machine: %v", err)
}
defer serverMachine.CleanUp()
ctx := context.Background()
for _, bm := range []struct {
name string
clientFunc func(context.Context, testutil.Logger) *dockerutil.Container
serverFunc func(context.Context, testutil.Logger) *dockerutil.Container
}{
// We are either measuring the server or the client. The other should be
// runc. e.g. Upload sees how fast the runtime under test uploads to a native
// server.
{
name: "Upload",
clientFunc: clientMachine.GetContainer,
serverFunc: serverMachine.GetNativeContainer,
},
{
name: "Download",
clientFunc: clientMachine.GetNativeContainer,
serverFunc: serverMachine.GetContainer,
},
} {
b.Run(bm.name, func(b *testing.B) {
// Set up the containers.
server := bm.serverFunc(ctx, b)
defer server.CleanUp(ctx)
client := bm.clientFunc(ctx, b)
defer client.CleanUp(ctx)
// iperf serves on port 5001 by default.
port := 5001
// Start the server.
if err := server.Spawn(ctx, dockerutil.RunOpts{
Image: "benchmarks/iperf",
Ports: []int{port},
}, "iperf", "-s"); err != nil {
b.Fatalf("failed to start server with: %v", err)
}
ip, err := serverMachine.IPAddress()
if err != nil {
b.Fatalf("failed to find server ip: %v", err)
}
servingPort, err := server.FindPort(ctx, port)
if err != nil {
b.Fatalf("failed to find port %d: %v", port, err)
}
// Make sure the server is up and serving before we run.
if err := harness.WaitUntilServing(ctx, clientMachine, ip, servingPort); err != nil {
b.Fatalf("failed to wait for server: %v", err)
}
// Run the client.
b.ResetTimer()
// Restart the server profiles. If the server isn't being profiled
// this does nothing.
server.RestartProfiles()
out, err := client.Run(ctx, dockerutil.RunOpts{
Image: "benchmarks/iperf",
}, iperf.MakeCmd(ip, servingPort)...)
if err != nil {
b.Fatalf("failed to run client: %v", err)
}
b.StopTimer()
iperf.Report(b, out)
})
}
}
func TestMain(m *testing.M) {
h.Init()
os.Exit(m.Run())
}
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