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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"
"fmt"
"testing"
"gvisor.dev/gvisor/pkg/test/dockerutil"
"gvisor.dev/gvisor/test/benchmarks/harness"
"gvisor.dev/gvisor/test/benchmarks/tools"
)
// see Dockerfile '//images/benchmarks/httpd'.
var docs = map[string]string{
"notfound": "notfound",
"1Kb": "latin1k.txt",
"10Kb": "latin10k.txt",
"100Kb": "latin100k.txt",
"1000Kb": "latin1000k.txt",
"1Mb": "latin1024k.txt",
"10Mb": "latin10240k.txt",
}
// BenchmarkHttpdConcurrency iterates the concurrency argument and tests
// how well the runtime under test handles requests in parallel.
func BenchmarkHttpdConcurrency(b *testing.B) {
// Grab a machine for the client and server.
clientMachine, err := h.GetMachine()
if err != nil {
b.Fatalf("failed to get client: %v", err)
}
defer clientMachine.CleanUp()
serverMachine, err := h.GetMachine()
if err != nil {
b.Fatalf("failed to get server: %v", err)
}
defer serverMachine.CleanUp()
// The test iterates over client concurrency, so set other parameters.
concurrency := []int{1, 25, 50, 100, 1000}
for _, c := range concurrency {
b.Run(fmt.Sprintf("%d", c), func(b *testing.B) {
hey := &tools.Hey{
Requests: 10000,
Concurrency: c,
Doc: docs["10Kb"],
}
runHttpd(b, clientMachine, serverMachine, hey, false /* reverse */)
})
}
}
// BenchmarkHttpdDocSize iterates over different sized payloads, testing how
// well the runtime handles sending different payload sizes.
func BenchmarkHttpdDocSize(b *testing.B) {
benchmarkHttpDocSize(b, false /* reverse */)
}
// BenchmarkReverseHttpdDocSize iterates over different sized payloads, testing
// how well the runtime handles receiving different payload sizes.
func BenchmarkReverseHttpdDocSize(b *testing.B) {
benchmarkHttpDocSize(b, true /* reverse */)
}
func benchmarkHttpdDocSize(b *testing.B, reverse bool) {
b.Helper()
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()
for name, filename := range docs {
concurrency := []int{1, 25, 50, 100, 1000}
for _, c := range concurrency {
b.Run(fmt.Sprintf("%s_%d", name, c), func(b *testing.B) {
hey := &tools.Hey{
Requests: 10000,
Concurrency: c,
Doc: filename,
}
runHttpd(b, clientMachine, serverMachine, hey, reverse)
})
}
}
}
// runHttpd runs a single test run.
func runHttpd(b *testing.B, clientMachine, serverMachine harness.Machine, hey *tools.Hey, reverse bool) {
b.Helper()
// Grab a container from the server.
ctx := context.Background()
var server *dockerutil.Container
if reverse {
server = serverMachine.GetNativeContainer(ctx, b)
} else {
server = serverMachine.GetContainer(ctx, b)
}
defer server.CleanUp(ctx)
// Copy the docs to /tmp and serve from there.
cmd := "mkdir -p /tmp/html; cp -r /local/* /tmp/html/.; apache2 -X"
port := 80
// Start the server.
if err := server.Spawn(ctx, dockerutil.RunOpts{
Image: "benchmarks/httpd",
Ports: []int{port},
Env: []string{
// Standard environmental variables for httpd.
"APACHE_RUN_DIR=/tmp",
"APACHE_RUN_USER=nobody",
"APACHE_RUN_GROUP=nogroup",
"APACHE_LOG_DIR=/tmp",
"APACHE_PID_FILE=/tmp/apache.pid",
},
}, "sh", "-c", cmd); err != nil {
b.Fatalf("failed to start server: %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 server port %d: %v", port, err)
}
// Check the server is serving.
harness.WaitUntilServing(ctx, clientMachine, ip, servingPort)
var client *dockerutil.Container
// Grab a client.
if reverse {
client = clientMachine.GetContainer(ctx, b)
} else {
client = clientMachine.GetNativeContainer(ctx, b)
}
defer client.CleanUp(ctx)
b.ResetTimer()
server.RestartProfiles()
for i := 0; i < b.N; i++ {
out, err := client.Run(ctx, dockerutil.RunOpts{
Image: "benchmarks/hey",
}, hey.MakeCmd(ip, servingPort)...)
if err != nil {
b.Fatalf("run failed with: %v", err)
}
b.StopTimer()
hey.Report(b, out)
b.StartTimer()
}
}
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