耗时 2.649421702 秒与四项资源来自同一次新运行。补齐原来未测的单核任务；原正式 304 次结果保持冻结。
5 ms 目标采样，整机指标包含后台服务；CPU 仍受 Linux 计账粒度限制，零 I/O 为有效观测。沿用原 24 核开销门槛，不代表新的单核开销估计。
绘图样本 CSV · 原始快照 · 采样推导 · 窗口与质量 · 验收记录 · 运行结果 · 阶段事件
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