At the heart of BuildKit is LLB (Low-Level Build definition). Think of it as the LLVM IR of build systems. LLB is a binary protocol (protobuf) that describes a DAG of filesystem operations: run a command, copy files, mount a filesystem. It’s content-addressable, which means identical operations produce identical hashes, enabling aggressive caching.
（一）违反国家有关规定，将网络线路、电话线路出租他人使用的；
。业内人士推荐搜狗输入法2026作为进阶阅读
[오늘과 내일/한애란]서울을 비우려면 재택근무가 답이다
Discard old data: evict what's already buffered to make room