Flight Log / calcom/cal.com #22067

feat: optimize slot calculation performance for team event types — a Devin (Cognition) bot flight

The Devin bot (Cognition) opened this pull request in calcom/cal.com on Jun 26, 2025; a burn — closed unmerged after human review: +3,923 −3,656, 4 files, 1 review.

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Lines
+3,923 −3,656
Files
4
Commits
9
Reviews
1
To merge
—
Task
feat

Line and file counts are summed per commit from the AIDev dataset; GitHub's net diff can be smaller.

Devin, on calcom/cal.com, took on a feat to optimize slot calculation for team event types. The change replaces an O(n²) linear search with binary search for slow four-week loads. The diff spans four files, 3923 additions and 3656 deletions, over nine commits. One review, no change requests. Closed unmerged after review, a burn.

“🚀”

— from the review (source)

From the pull request description

# Optimize slot calculation performance with binary search algorithm ## Summary This PR addresses the performance bottleneck in Cal.com's team event scheduling where loading 4 weeks of data takes 5-7.5 seconds instead of the expected 2 seconds. The root cause was an O(n²) linear search through slo…

Excerpt (first 300 characters) — the full description is on GitHub.

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Flight timeline

  1. —committedDevin AI
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  8. —reviewed
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  11. Jun 26, 2025labeledkeithwillcode

Cite this flight: AgentRiders Flight Log, calcom/cal.com#22067, record updated Nov 4, 2026, https://agentriders.com/logs/calcom/cal.com/22067/

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