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https://github.com/hanzoai/visor.git
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Alexander CuevaandgVisor bot
e11d0a7b1c
Implement the remaining runtime profiling subcommands for `runsc profile`: - `goroutine`: Dumps the current stack traces of all running goroutines in Sentry. - `block`: Collects a goroutine blocking contention profile. - `mutex`: Collects a mutex contention profile. - `trace`: Collects an execution trace. PiperOrigin-RevId: 978048587
100 lines
2.7 KiB
Go
100 lines
2.7 KiB
Go
// Copyright 2026 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 profile
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import (
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"context"
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"os"
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"time"
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"github.com/google/subcommands"
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"gvisor.dev/gvisor/runsc/cmd/util"
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"gvisor.dev/gvisor/runsc/config"
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"gvisor.dev/gvisor/runsc/container"
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"gvisor.dev/gvisor/runsc/flag"
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)
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// mutex implements subcommands.Command for the "mutex" command.
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type mutex struct {
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duration time.Duration
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output string
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}
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// Name implements subcommands.Command.
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func (*mutex) Name() string {
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return "mutex"
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}
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// Synopsis implements subcommands.Command.
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func (*mutex) Synopsis() string {
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return "collects a mutex contention profile of a running sandbox"
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}
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// Usage implements subcommands.Command.
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func (*mutex) Usage() string {
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return "mutex [flags] <container id> - collects a mutex profile of the sandbox\n"
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}
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// SetFlags implements subcommands.Command.
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func (m *mutex) SetFlags(f *flag.FlagSet) {
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f.DurationVar(&m.duration, "duration", 30*time.Second, "amount of time to collect the mutex profile")
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f.StringVar(&m.output, "output", "", "path to write mutex profile output (default: stdout)")
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}
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// Execute implements subcommands.Command.
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func (m *mutex) Execute(_ context.Context, f *flag.FlagSet, args ...any) subcommands.ExitStatus {
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if f.NArg() != 1 {
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if f.Usage != nil {
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f.Usage()
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}
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return subcommands.ExitUsageError
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}
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id := f.Arg(0)
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conf := args[0].(*config.Config)
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opts := container.LoadOpts{
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SkipCheck: true,
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RootContainer: true,
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}
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cont, err := container.Load(conf.RootDir, container.FullID{ContainerID: id}, opts)
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if err != nil {
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util.Fatalf("loading sandbox: %v", err)
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}
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if !cont.IsSandboxRunning() {
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util.Fatalf("container sandbox is not running")
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}
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out := os.Stdout
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if m.output != "" {
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f, err := os.OpenFile(m.output, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
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if err != nil {
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util.Fatalf("failed to open output file: %v", err)
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}
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defer f.Close()
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out = f
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}
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util.Infof("Collecting mutex profile for sandbox %q (%v)...", cont.Sandbox.ID, m.duration)
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if err := cont.Sandbox.MutexProfile(out, m.duration); err != nil {
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util.Fatalf("mutex profiling failed: %v", err)
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}
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if m.output != "" {
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util.Infof("Mutex profile written to %s", m.output)
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}
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return subcommands.ExitSuccess
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}
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