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我想看看，如果我不需要启动一个全新的虚拟机，一个隔离的代码沙盒能以多快的速度启动。<p>因此，我没有为每次执行都启动一个新的微型虚拟机，而是用已经加载了 Python 和 numpy 的方式启动一次 Firecracker，然后对整个虚拟机状态进行快照。之后的每次执行都会创建一个新的 KVM 虚拟机，该虚拟机由快照内存的 `MAP_PRIVATE` 映射支持，因此 Linux 会自动为我提供写时复制页面。<p>这意味着每个沙盒都从一个已经在真实虚拟机中运行的 Python 进程开始，运行代码，然后退出。<p>这些是真正的 KVM 虚拟机，而不是容器：独立的客户内核、独立的客户内存、独立的页表。当虚拟机写入内存时，它会获得该页面的私有副本。<p>困难的部分不是 CoW 本身。困难的部分是如何正确地恢复快照虚拟机。<p>Rust，Apache 2.0 协议。

I have tons of videos of my family and kids. I would like to be able to use AI to trim them. My 6 y&#x2F;o son asked me to add effects to a video of him doing parkour, and I so badly wanted to try.<p>But all of the main LLM providers I tried denied my request because it was against their policy. I managed to get Runway to do a light video edit but it was limited to 8 seconds total :(<p>I completely get where these policies comes from, but I&#x27;m also wondering if there&#x27;s something out there for people like me. I would love the ability to upload a video, give it a prompt for what to change, and voila -- has anyone found anything useful here?