KV Cache Fragmentation Problem and Paged Solution in LLM

Discover how to mitigate internal GPU memory fragmentation and optimize high-demand inference performance with vLLM's PagedAttention. At Q2BSTUDIO, we offer advanced solutions in artificial intelligence, cybersecurity, and cloud services AWS and Azure to drive digital transformation

jueves, 7 de agosto de 2025 • 1 min read • Q2BSTUDIO Team

Artificial-Intelligence-

Severe internal fragmentation of GPU memory caused by static allocation strategies of the KV cache in LLM model services affects performance and limits the scalability of high-demand inferences

With vLLM's PagedAttention, this inefficiency is mitigated thanks to its dynamic memory allocation that optimizes GPU space usage and reduces internal fragmentation by dividing memory into adaptively managed pages

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