nano-vllm/progress.md

Progress Log: nanovllm State Leakage Debug

Session: 2026-01-20

Entry 1: Initial Analysis Complete

Time: 开始

Completed:

• 读取 docs/ruler_32k_chunked_offload_issue.md 理解问题描述
• 读取 nanovllm/kvcache/offload_engine.py 分析 reset() 实现
• 读取 nanovllm/kvcache/hybrid_manager.py 分析 deallocate() 实现
• 读取 nanovllm/engine/llm_engine.py 分析请求处理流程
• 创建 planning files (task_plan.md, findings.md, progress.md)

Key Finding: OffloadEngine.reset() 清除了 GPU buffers 但没有清除 CPU cache。这是最可能的状态泄漏源头。

Next Steps:

1. 验证 CPU cache 假设 - 添加 CPU cache 清零到 reset()
2. 运行对比测试确认修复效果
3. 检查其他可能的状态泄漏点

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Entry 2: (待填写)

Time:

Completed:

Issues:

Next Steps:

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Test Results Summary

Test	Before Fix	After Fix	Notes
niah_single_1 (fresh-llm)	100%	-	Baseline
niah_single_1 (batch)	~80%	-	State leakage
multikey_1	~94%	-
multikey_2	~94%	-
multikey_3	~56%	-

Files Modified

File	Change	Status
(待记录)