perf(attendees): eliminate /attendees N+1 — 83 → 36 queries (-57%)#550

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smarcet wants to merge 30 commits into

hotfix/cache-optimizationsfrom

perf/attendees-n-plus-1

Commits on May 23, 2026

fix(serializer): add last_edited timestamp to presentation cache key for automatic invalidation
smarcet
committed
chore(routes): enable server.timing.doctrine on getEvents for profiling
smarcet
committed
chore(profiling): expose per-phase request breakdown via Server-Timing header
smarcet
committed
fix(profiling): accurate DB time measurement via DBAL Driver Middleware
smarcet
committed
chore(profiling): log top-repeating SQL patterns to identify exact N+1 sources
smarcet
committed
fix(member): memoize belongsToGroup() per-instance to eliminate N+1 of 84 queries
smarcet
committed
fix(repository): preload PresentationSpeaker + Member in single DQL query
smarcet
committed
fix(repository): include root alias 'a' in speaker+member preload SELECT
smarcet
committed
chore(debug): instrument preload to confirm what it loads
smarcet
committed
chore(debug): capture Member query params to identify which Members are being loaded
smarcet
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fix(debug): strip backticks before matching Member table name
smarcet
committed
fix(auth): memoize getCurrentUser() — eliminates ~98 redundant Member SELECTs per request
smarcet
committed
fix(repository): batch-preload SummitSelectedPresentation, eliminates 20 queries
smarcet
committed

Commits on May 25, 2026