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vLLM 0.31.0 adds GPU optimizations and persistent weight caching

github.com 27 min read Editor score 8/10

Preview image for vLLM 0.31.0 adds GPU optimizations and persistent weight caching

The release adds SM100 attention and KV-cache optimizations, fused operations, and a preload CLI that keeps post-quantized weights resident across engine restarts. These changes target inference performance and faster recovery of serving capacity.

What
vLLM 0.31.0 is a release with GPU optimizations, serving features, scheduling controls, and fixes.
How
A new preload CLI launches a daemon that keeps post-quantized weights in GPU memory across engine restarts.
Why it matters
Persistent weight caching can support faster restarts in serving systems, while the release also adds controls for request admission and prefill scheduling.
launches keeps weights reused on res… vllm preload CLI weight-cachedaemon GPU memory engine
The preload CLI starts a daemon that retains weights in GPU memory across engine restarts. Sketched from the article's own text.

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