史诗:Jan Agent的前缀缓存纪律
作者: thinhlpg创建于 2026年9月16日更新于 2026年9月17日
┌───────────────── reusable prefix — should never change ─────────────────┐ ┌── tail ──┐
│ │ │ │
wire │ "Today's date is 2026-09-16." │ system prompt │ memory block │ tools │ │ history │
│ ▲ │ ▲ │ ▲ │ ▲ │ │ │
└──────────────┼──────────────────┴────────┼────────┴───────┼────────┴───┼───┘ └──────────┘
│ │ │ │
rotates at midnight, replaced wholesale recomputed HashMap
and differs per timezone on every run per user query iteration
order
loop.rs:2022-2031 upstream.rs:312-321 loop.rs:2008-2021 upstream.rs:599-621
(#8957) (#8960) (#8958) (#8959)Four independent writers above the cache line. Any one of them changing invalidates everything to its right.
内容来源: janhq/jan