vllm
https://github.com/vllm-project/vllm
Python
A high-throughput and memory-efficient inference and serving engine for LLMs
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- Issues
- [Perf][Model Loader] Reload layout-identical weights directly
- [Bug]: StructuredOutputManager sizes grammar-compile ThreadPoolExecutor by host CPU count — cgroup-unaware and uncapped, causing CFS throttling and decode stalls on Kubernetes
- [Bugfix][Structured Output] Cap grammar-compile executor workers to avoid CFS throttling in containers
- [Bugfix][KV Connector][NIXL] Support matching DCP layouts with PCP
- fix: accept empty tool call list in case of none required tool_choice
- [BugFix] bound FlashMLA sparse decode intermediate tensors size
- [Bug]: `MooncakeStoreConnector` KV Offload hangs the vLLM engine on a GDN model (`Qwen3.6-35B-A3B`)
- [Bugfix] Fix DBRX weight loading crash after RoutedExperts refactor (#41184)
- [Usage]: DeepSeek-V4-Flash on single B300 — auto-enabled VLLM_USE_BREAKABLE_CUDAGRAPH caps throughput (disabling gives ~1.6x); is it safe, and is torch.compile support planned?
- [Perf] Batch Mamba2 prefill SSM state saves into one indexed copy
- Docs
- Python not yet supported