Instead of filtering syscalls to the host kernel, gVisor interposes a completely separate kernel implementation called the Sentry between the untrusted code and the host. The Sentry does not access the host filesystem directly; instead, a separate process called the Gofer handles file operations on the Sentry’s behalf, communicating over a restricted protocol. This means even the Sentry’s own file access is mediated.
Consumer pulls from the queue, processes in micro-batches of 50.
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它不仅能解释代码，还能帮我梳理逻辑，告诉我哪里可能有性能问题。