copy(tasks2, tasks)
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，更多细节参见91视频
1L decoder, d=4, 1h, ff=8，更多细节参见51吃瓜
The gains illustrate how fundamental design choices compound: batching amortizes async overhead, pull semantics eliminate intermediate buffering, and the freedom for implementations to use synchronous fast paths when data is available immediately all contribute.
The code runs as a standard Linux process. Seccomp acts as a strict allowlist filter, reducing the set of permitted system calls. However, any allowed syscall still executes directly against the shared host kernel. Once a syscall is permitted, the kernel code processing that request is the exact same code used by the host and every other container. The failure mode here is that a vulnerability in an allowed syscall lets the code compromise the host kernel, bypassing the namespace boundaries.