Files
Codeman/test
Codeman maintainer 02387b5b16 perf(i18n): an xterm row record is decided by its rows container, once
xterm's DOM renderer rewrites its rows (`.xterm-rows > div`) on every frame
a pane changes, and with a grid of tiles that is every record the i18n
observer gets (about 4,600 a second for six printing tiles, all of them
row rewrites). Each paid one closest() over the whole skip selector list
(the per-record skip of 21beacf7, which stays). Every row of one terminal
shares its parent, so that parent's own shouldSkip() verdict is now kept
once it says skip: same verdict, one closest() per terminal instead of one
per record. A rows container outside any skipped surface keeps the full
check, so nothing that was translated stops being translated.

Measured (6 printing tiles, 30 s profiles, n=3 interleaved A/B, load 5.8
to 9.5, equivalent class-check variant): observer 391 to 445 ms -> 47 to
52 ms per 30 s in English, 473 -> 58 ms in zh-CN; main-thread script time
-0.35 s per 30 s (-14%). Frame share unchanged within noise.

Live, this code (6 printing tiles, 30 s profiles, interleaved against the
file at 00440c02, load 4.4 to 6.6): observer 417 to 430 ms -> 56 to 58 ms
per 30 s; script time 2.63 to 2.79 s -> 2.24 s in the undisturbed window.
The other window of this code was disturbed by CPU contention on the box
(every rendering cost 3 to 4 times higher, xterm's own included, 351 frames
in 30 s) and is not counted; its observer time was 56 ms all the same.

Test: 60 row rewrites in a terminal cost one closest(), the rows stay
untranslated, and a stray `.xterm-rows` outside any skip surface is still
translated (the verdict closest() gives); mutation-checked both ways.

Scope: PR 2 (i18n, on top of 21beacf7).

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-10-07 06:45:16 +02:00
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