Implementing and Optimizing PagedAttention Kernels in vLLM

PagedAttention Memory Layout and Block Mapping PagedAttention replaces traditional contiguous key-value cache allocations with a virtual-to-physical block mapping scheme. This approach mirrors operating system memory paging, allowing non-contiguous GPU memory segments to serve sequential generation tasks without fragmentation overhead. Each req ...

Posted on Wed, 20 May 2026 06:06:02 +0000 by LarryK