#146 - Pinky AAAAA: the growth cure — indexes + first paint + action latency (v1.112.0) - OSS-Singularity/zcode-dispatch-observatory - oss-oo

ClaudiuSchuster commented

2026-10-25 06:50:37 +00:00

Owner

RV frame + owner global note: 3 indexes (idempotent startup migration), LIMIT pushdown (EXPLAIN-proven), first-paint on the response cache (re-measured 4303ms→264ms), UI-action latency + optimistic dismiss/retry + ghost cards + the V-F1 acceptedMs sourcing fold. Validated SHIP (measurements re-measured independently).

ClaudiuSchuster added 1 commit

2026-10-25 06:50:37 +00:00

Pinky AAAAA: the growth cure — indexes + first paint + action latency (v1.112.0)

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RV's verdict frame (binding): the transcript slowness is a GROWTH problem,
not a regression — the session DB's whole history ran with ZERO indexes on
message/part/session. The Owner refined: the pain is GLOBAL, so first paint
weighs at least as much as the excerpts.

A1 — ensure_query_indexes: the startup index migration (message(session_id,
sequence), part(session_id, message_id, sequence), session(time_updated));
prefix-aware (the desktop's newer schema satisfies the first two without
duplicates), idempotent, deferred honestly on read-only/locked DBs.

A2 — the query shapes: the transcript LIMIT pushdown (bounded slice BEFORE
the joins; the part join seeks the exact index prefix) + the first-paint
lean on the response cache (a CONVERGING boot primer + stale-while-
revalidate on unchanged keys, single-flighted; content mutations keep the
synchronous fresh path — G3 unchanged).

A3 — optimistic action acknowledgment (dismiss/retry/turn-retry settle the
card at the click; an honest refusal is the only resurrection), the
ghost-card law (cards die with their entry OR by owner choice), the strip
dismiss optimism, and the V-F1 fold: acceptedMs sourced from the
dispatcher's startedAtUtc (the honest 202 moment), never the file mtime.

Measured on the hermetic rig (quarter station census, BEFORE=v1.108.0 base
driven via ZDO_RIG_REPO/ZDO_RIG_PHASE): transcript cold 15114→24 ms, warm
189→23.5 ms, post-TTL serve 3123→28 ms, first paint 3491→318 ms (min of 3),
dismiss ack 127→5 ms (median of 5). Full table + EXPLAIN QUERY PLAN
transcripts in the round dossier; rig tests/rigs/aaaaa_growth_cdp.py.

Version note: the mission named v1.110.0; the sibling BBBBB took v1.110.0
(PR #145) and v1.111.0 (local tag) mid-round — the version guard forces
v1.112.0.

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