isPiMessageEntry allocates two array literals per call; recovery parses each timestamp three to four times
维护者通常 1 天内回复
还没有人认领这个 Issue。
评估
- 难度
- 2/5
- 预计耗时
- 1-3 小时
- 新手友好度
- 25/100
- Issue 类型
- 重构
- 描述清晰度
- 描述清楚
- 活跃度
- 活跃
- 技术栈
- javascript
- 领域
- performance
调研方向
Read packages/pi-extension/index.js at lines 213–218, then backfill.js at line 129 and projector.js at lines 14 and 112. The issue says this cleanup is deferred until those files are edited for a substantive reason, so do not start it as standalone work without explicit delegation. If delegated, done means hoisting the two array literals and parsing each timestamp once.
由索引模型根据 Issue 内容生成。
描述
Source: #1874 at 5ab56bcaa3e41a8fcb6a095eb83e9b6d76c3f38e
Location: packages/pi-extension/index.js:213-218
Severity: minor
Evidence
The classifier allocates two array literals per call (index.js:215 and :218), and recovery parses each entry timestamp repeatedly (backfill.js:129 Date.parse, projector.js iso() at :14 and :112). Measured in round 2: 148 ns/call as shipped, 126 ns with hoisted literals, about 15 ms once per 100,000-entry resume, and about 100 ms of redundancy per full 256 MiB sweep against the JSON.parse that dominates it.
Why deferral is safe
Measured immaterial at every bound the code enforces, and AGENTS.md directs not to land adjacent cleanups; per project guidance a measured-immaterial CPU nit is a preference, not a defect. Confirmed unchanged at head 5ab56bca.
Acceptance condition
Hoist the two literals to module constants and parse each timestamp once next time these files are edited for a substantive reason.
Review preference; backlog only. A human may explicitly delegate it with neutral:fix.
- 主要语言
- JavaScript
- 星标
- 11
- 派生
- 0
- 平均合并
- 2 小时 49 分钟
- 30 天内合并 PR
- 302
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