Primary sourcearXiv: DeepSeek
View sourceEvent ·Official first-hand
LLVMhammer:通过 Rowhammer 位翻转让 LLM 推理变慢 4-16%
研究者提出 LLVMhammer,这是首个利用 Rowhammer 位翻转攻击拖慢 LLM 推理的方法,攻击目标是 Triton JIT 编译管线的优化 pass。位翻转让 Triton 生成功能相同但性能更差的 GPU kernel,且由于 Triton 会把编译好的 kernel 缓存到磁盘,一次攻击就能造成持久性变慢。实验在 NVIDIA RTX 4090 和 AMD RX 7900 XTX 上测试了 Qwen2.5-7B-Instruct、Llama-3.1-8B-Instruct、Mistral-7B-Instruct-v0.3、Deepseek-llm-7B-chat 四个模型,单 GPU 推理延迟增加 4-16%。位翻转还能破坏输出质量,BERTScore 最低降到 25%。
Current read
有人用 Rowhammer 硬件攻击搞坏了 Triton 编译,四个主流模型实测慢 4-16%,搞 GPU 推理的都该看看这篇。
11 sources36° AI heatLast updated 2026/10/22 06:24:35
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