Tier-2 batch-2a: tempdb-deep analysis arms (version-store size + PAGELATCH)#1519
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Two sourced pure-scorer arms (land in Darling + Lite; no collector change -- both read data already in existing fact metadata): - TempDB version-store pressure by ABSOLUTE size (max_version_store_mb): >5000 CRITICAL / >2000 HIGH / >1000 MEDIUM, Math.Max'd into TEMPDB_USAGE alongside the existing space-fraction score. Source: report.tempdb_pressure (install/47:1431-1433). - TempDB PAGELATCH_UP allocation contention: absolute wait_time_ms > 10000 -> MEDIUM. Source: report.tempdb_contention_analysis (install/47:2515). The CRITICAL allocation_contention_warning is a tempdb-scoped flag not carried in the server-wide wait fact, so this is scoped to the PAGELATCH_UP MEDIUM tier. Base caps at 1.0 (WARNING); CRITICAL earned via corroboration. Sourced advice added; FactScorerTests in Lite + Dashboard (67 Lite FactScorer tests green). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This was referenced Jul 14, 2026
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Two sourced pure-scorer arms in the shared
FactScorer(land in Darling + Lite), continuing #1517's pattern.max_version_store_mb): >5000 CRITICAL / >2000 HIGH / >1000 MEDIUM,Math.Max'd into TEMPDB_USAGE beside the existing space-fraction score. Source:report.tempdb_pressure(install/47:1431-1433).wait_time_ms > 10000-> MEDIUM. Source:report.tempdb_contention_analysis(install/47:2515); the CRITICALallocation_contention_warningis a tempdb-scoped flag not in the server-wide wait fact, so scoped to the PAGELATCH_UP MEDIUM tier.Both read existing fact metadata (no collector change). Base caps at 1.0 (WARNING). 67 Lite FactScorer tests green.
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