Per-job PID + mount + IPC namespaces via clone3 — so each execution is isolated from other executions inside the same gVisor sandbox
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
，这一点在im钱包官方下载中也有详细论述
Data flows left to right. Each stage reads input, does its work, writes output. There's no pipe reader to acquire, no controller lock to manage. If a downstream stage is slow, upstream stages naturally slow down as well. Backpressure is implicit in the model, not a separate mechanism to learn (or ignore).
Unix pipes are perhaps the purest expression of this idea: