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derived_task_summary.execution is wall-clock seconds, not minutes. Verified May 2026: gecko-t win11 p50 is ~1409 s (~23 min/task); as minutes that would be 23 h, which is impossible given task deadlines. Using minutes makes task-hours off by 60x in cost-per-task analysis. Updates the column note, the sample query alias, and the outlier-filter caveat (86400 s, not 1440 min).
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derived_task_summary.executionis wall-clock seconds, not minutes. The azure-cost-analysis reference doc (taskcluster-task-counting.md) says minutes in three places.Verified against May 2026 data: gecko-t win11 p50 is ~1409 s (~23 min/task). If the unit were minutes, p50 would be ~23 hours, which is impossible given task deadlines (observed max ~7519 s ≈ 2.1 h). Treating the column as minutes makes task-hours off by 60x in any cost-per-task or utilization analysis.
Changes:
execution(minutes) → (seconds, wall-clock task runtime)avg_exec_minutes→avg_exec_seconds< 86400s (24 h), not< 1440minDoc-only change.