Achievement log for the night before CosmicFest, and the board amendment that
carries the resume points a cold session will need.
The log's through-line is not the LED daemon; it is that FOUR separate
instruments returned confident wrong numbers in one evening — `ps -o %cpu`
summed as if it were instantaneous (it is a lifetime average; the main pulsar
process read 2.1% while one child renderer burned 112%), `pw-top`'s ERR column
read as current when it is cumulative (delta over 25 s: zero on every node), a
shell path built as `live/$f` when `$f` already began `live/`, and a
`grep -cE '[1-9] move'` that silently skips `10 move`. Three of the four
returned a plausible number rather than an error, which is the whole problem: a
wrong tool is rarely silent-and-empty, it is confident-and-slightly-off.
Board amendment records what the next session must not redo:
* The highlighter is EXONERATED by its own instrument — 5 RAF/s x 1.671 ms =
0.8% of a core, `markers 293 live, creates/destroys 0/s` over 4h42m. The
marker leak is dead in the field. Do NOT re-open that hunt.
* Five hypotheses for the ~112% renderer are already dead, each with its
evidence, so they are not re-tried: editor-background (disabled),
sound-browser rAF loops (all terminate), fork-per-LED (2.8 ms p50, bench p99
18 ms zero overrun), aseqdump pipe buffering (disproved on an isolated client).
* gig-up is 5 blockers -> 1, and the survivor is PLN's decision to defer 20
column moves rather than renumber knobs hours before playing.
* CosmicFest EXISTS (PLN's own words) but has no canonical www page. The date
and venue must come from him, never backfilled from eb9221de.
* Parked and flagged: 3205e7f unpushed in the pulsar-tidalcycles fork,
sound-browser.js's 144 unvalidated insertions, backlog.md's +60 lines, and a
one-line hello_fred.tidal stub.
