无需VirtualBox，如何实现软件休眠/唤醒而非直接关闭？

Hey there, I get exactly what you're after—ditching the "close and reopen" cycle for your app by hibernating/waking it up, without relying on VirtualBox. Let's break down practical, actionable solutions tailored to different operating systems, plus some advanced ideas:

These use built-in OS tools, so no extra software needed (most of the time).

Windows #

• Sysinternals Pssuspend: This lightweight tool lets you pause/resume any process with a command line. Grab it from Microsoft's Sysinternals suite, then run:
  • Pause the app: pssuspend.exe <process-name> (e.g., pssuspend.exe chrome.exe)
  • Resume it: pssuspend.exe -r <process-name>
• Task Manager GUI: Open Task Manager, head to the "Details" tab, right-click your app's process, and select Suspend to pause it. To wake it up, right-click again and choose Resume.
• AutoHotkey Automation: Write a simple script to bind a keyboard shortcut to suspend/resume your app. For example:

  ^!p:: ; Ctrl+Alt+P shortcut
      Process, Suspend, Toggle, chrome.exe
  return
  

Linux #

• Command Line Process Control: Use kill signals to pause and resume processes:
  • Pause: kill -STOP $(pgrep <process-name>) (e.g., kill -STOP $(pgrep code))
  • Resume: kill -CONT $(pgrep <process-name>)
• System Monitor GUI: Open your distro's System Monitor, find the app in the process list, right-click it, and pick Stop Process to pause, Continue Process to wake it.
• CRIU (Checkpoint/Restore In Userspace): For persistent state (even across reboots), CRIU takes a snapshot of your app's process and saves it to disk. Install it via your package manager, then:
  • Create a checkpoint: criu dump -t <PID> -D ~/app-snapshots (replace <PID> with your app's process ID)
  • Restore later: criu restore -D ~/app-snapshots

macOS #

• Terminal Commands: Same signal approach as Linux:
  • Pause: kill -STOP $(pgrep <app-name>) (e.g., kill -STOP $(pgrep Safari))
  • Resume: kill -CONT $(pgrep <app-name>)
• Activity Monitor: Open Activity Monitor, find your app, right-click it, select Suspend to pause, Resume to wake.
• AppleScript Automation: Automate the suspend/resume with a script you can trigger via shortcuts:

  tell application "System Events"
      set targetApp to first process whose name is "Visual Studio Code"
      set targetApp's suspended to not targetApp's suspended
  end tell
  

  Save this as an AppleScript app, then use macOS's Shortcuts app to bind it to a keyboard combo.

If you need something more flexible or persistent:

• Docker Checkpoints: If your app can run in a Docker container, use Docker's built-in checkpoint feature to save the container's state and restore it later:
  • Create checkpoint: docker checkpoint create my-app-container my-checkpoint
  • Restore: docker start --checkpoint my-checkpoint my-app-container
• App-Native Session Saving: Many apps have built-in session persistence (e.g., IDEs like IntelliJ save open tabs, browsers save sessions). While not exactly "hibernation", it's often a lighter alternative if system-level suspend isn't necessary.
• Third-Party Process Managers: Tools like Process Lasso (Windows) or htop (Linux/macOS) offer GUI or CLI controls to bulk-suspend/resume processes, which is handy if you need to manage multiple apps at once.

The best choice depends on your workflow: native OS tools are perfect for quick suspend/resume, while CRIU or Docker checkpoints are better if you need to preserve state across system reboots.

内容的提问来源于stack exchange，提问作者Kareem Connor