erikdarlingdata/PerformanceMonitor
Free, open-source SQL Server performance monitoring. Full Edition (server-installed, 30 collectors) and Lite Edition (standalone, DuckDB). Built-in MCP server for AI integration.
Collectors run against live DMVs and Extended Events with configurable schedules (Aggressive, Balanced, Low-Impact presets), storing 23+ metrics in local DuckDB + Parquet archives with automatic monthly compaction and 3-month rolling retention. The built-in MCP server exposes 51-63 read-only analysis tools for AI integration (Claude, Cursor), while community utilities (sp_WhoIsActive, sp_BlitzLock, PlanAnalyzer) are installed automatically—all data stays on-premises with no telemetry or cloud dependency.
244 stars.
Stars
244
Forks
28
Language
C#
License
MIT
Category
Last pushed
Mar 11, 2026
Commits (30d)
0
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