Sglang fast recovery - #385
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Signed-off-by: Michael Qiu <qiudayu.qdy@antgroup.com>
alexnails
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Aug 9, 2026
| ## Public Roadmap | ||
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| The Weight Cache Daemon is just the **first step** — there is still a lot to build, and we are excited about the road ahead. Phase 1 today covers TP + PP, single- and multi-node launch, per-GPU zero-copy CUDA IPC, and unquantized plus block-wise FP8. Beyond that, many high-impact directions remain open: | ||
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Another direction is other hardwares having this feature supported assuming they have similar functionality (AMD, Intel both have similar IPC mechanism)
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| ## TL;DR | ||
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| Nowadays, SOTA models are getting much bigger and reloading the model service after a crash is very expensive. Therefore, we introduce the **Weight Cache Daemon**, a persistent GPU process that holds post-quantized model weights in GPU memory and serves them to new SGLang engine instances via CUDA IPC zero-copy mapping. This reduces weight loading from minutes to sub-second times. |
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| ## TL;DR | ||
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| Nowadays, SOTA models are getting much bigger and reloading the model service after a crash is very expensive. Therefore, we introduce the **Weight Cache Daemon**, a persistent GPU process that holds post-quantized model weights in GPU memory and serves them to new SGLang engine instances via CUDA IPC zero-copy mapping. This reduces weight loading from minutes to sub-second times. |
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| ## TL;DR | ||
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| Nowadays, SOTA models are getting much bigger and reloading the model service after a crash is very expensive. Therefore, we introduce the **Weight Cache Daemon**, a persistent GPU process that holds post-quantized model weights in GPU memory and serves them to new SGLang engine instances via CUDA IPC zero-copy mapping. This reduces weight loading from minutes to sub-second times. |
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weight loading from minutes to seconds.
added 2 commits
August 9, 2026 10:22
alexnails
approved these changes
Aug 9, 2026
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