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Calculate MaxBenefitPercent for each wait type in plan wait stats. Serial plans use a simple ratio (waitMs/elapsedMs). Parallel plans use Joe's proportional allocation formula, mapping wait types to relevant operators (I/O waits to operators with physical reads, CPU waits to operators with CPU work, etc.). Parallelism waits (CXPACKET/CXCONSUMER/CXSYNC) use the efficiency gap formula instead of raw wait time — threads waiting for other threads is a symptom, not directly addressable time. Benefits shown in CLI text, HTML export, JSON API (wait_benefits array), and desktop app wait stats ribbon. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Add wait stats benefit scoring (Stage 2)
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Test plan
🤖 Generated with Claude Code