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Никита Хромин (ночной линейный редактор)
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Zero-copy page cache. The pcache returns direct pointers into pinned memory. No copies. Production Rust databases have solved this too. sled uses inline-or-Arc-backed IVec buffers, Fjall built a custom ByteView type, redb wrote a user-space page cache in ~565 lines. The .to_vec() anti-pattern is known and documented. The reimplementation used it anyway.