125 lines
3.0 KiB
Go
125 lines
3.0 KiB
Go
// Copyright 2021 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package fsstress runs fsstress tool inside a docker container.
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package fsstress
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import (
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"context"
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"flag"
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"fmt"
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"io/ioutil"
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"math/rand"
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"os"
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"strconv"
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"strings"
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"testing"
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"time"
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"github.com/docker/docker/api/types/mount"
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"gvisor.dev/gvisor/pkg/test/dockerutil"
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"gvisor.dev/gvisor/pkg/test/testutil"
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)
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func init() {
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rand.Seed(int64(time.Now().Nanosecond()))
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}
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func TestMain(m *testing.M) {
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dockerutil.EnsureSupportedDockerVersion()
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flag.Parse()
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os.Exit(m.Run())
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}
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type config struct {
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operations string
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processes string
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target string
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mounts []mount.Mount
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}
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func fsstress(t *testing.T, conf config) {
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ctx := context.Background()
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d := dockerutil.MakeContainer(ctx, t)
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defer d.CleanUp(ctx)
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const image = "basic/fsstress"
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seed := strconv.FormatUint(uint64(rand.Uint32()), 10)
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args := []string{"-d", conf.target, "-n", conf.operations, "-p", conf.processes, "-s", seed, "-X"}
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opts := dockerutil.RunOpts{
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Image: image,
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Mounts: conf.mounts,
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}
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var mounts string
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if len(conf.mounts) > 0 {
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mounts = " -v "
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for _, m := range conf.mounts {
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mounts += fmt.Sprintf("-v <any_dir>:%s", m.Target)
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}
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}
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t.Logf("Repro: docker run --rm --runtime=%s%s gvisor.dev/images/%s %s", dockerutil.Runtime(), mounts, image, strings.Join(args, " "))
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out, err := d.Run(ctx, opts, args...)
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if err != nil {
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t.Fatalf("docker run failed: %v\noutput: %s", err, out)
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}
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// This is to catch cases where fsstress spews out error messages during clean
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// up but doesn't return error.
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if len(out) > 0 {
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t.Fatalf("unexpected output: %s", out)
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}
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}
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func TestFsstressGofer(t *testing.T) {
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// This takes between 30-60s to run on my machine. Adjust as needed.
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cfg := config{
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operations: "500",
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processes: "20",
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target: "/test",
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}
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fsstress(t, cfg)
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}
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func TestFsstressGoferShared(t *testing.T) {
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dir, err := ioutil.TempDir(testutil.TmpDir(), "fsstress")
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if err != nil {
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t.Fatalf("ioutil.TempDir() failed: %v", err)
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}
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defer os.RemoveAll(dir)
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// This takes between 30-60s to run on my machine. Adjust as needed.
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cfg := config{
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operations: "500",
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processes: "20",
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target: "/test",
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mounts: []mount.Mount{
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{
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Source: dir,
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Target: "/test",
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Type: "bind",
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},
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},
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}
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fsstress(t, cfg)
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}
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func TestFsstressTmpfs(t *testing.T) {
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// This takes between 10s to run on my machine. Adjust as needed.
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cfg := config{
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operations: "5000",
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processes: "20",
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target: "/tmp",
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}
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fsstress(t, cfg)
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}
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