ConceptZero-copy / 零拷贝技术

Zero-Copy

A classic optimization technique in systems programming that allows data to be logically shared rather than physically duplicated, using memory mapping, pointer sharing, or page-table remapping. Classic implementations include Linux's sendfile(), mmap(), and DMA. In GPU contexts it can be achieved via CUDA UVA and GPUDirect.

Timeline (last 90 days)

Oct 18

Zero-copy means multiple processes or libraries share the same physical memory and each reads directly through a view in its own expected layout, with no data movement.

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All Facts (1)

Unverified

Zero-copy means multiple processes or libraries share the same physical memory and each reads directly through a view in its own expected layout, with no data movement.

50%

Source Articles

DuckDB and Arrow Dominate AI Data Preparation—Why Do They Hit a Wall in Inference Serving?Oct 18 Cross-Language Programming in the AI Era: Calling C++ from TypeScript for High-Performance ComputingSep 27 MemStitch Zero-Copy Context Bridging: How It Achieves 25x TTFT Speedup in vLLMJul 15