PerformanceMonitor

Active·★ 439·MIT·Updated 2026-07-19

★ Hidden Gem★ Observability★ Data Processing

SQL Server Performance Monitor is a free, open-source tool designed to monitor SQL Server instances with over 30 collectors and real-time alerts, aiming to replace expensive commercial solutions. It offers both a full server-installed edition and a standalone Lite edition, featuring AI-powered analysis integration and no data telemetry.

PerformanceMonitor is currently grouped under RAG / Knowledge Base, which makes it easier to evaluate through workflow fit instead of isolated features alone. Based on the available data, it leans most heavily toward 32 specialized T-SQL collectors for various metrics (wait stats, query performance, deadlocks, etc.). and 24/7 production SQL Server monitoring and long-term performance baselining.. The listed license is MIT, which is useful when adoption constraints matter. It also shows measurable community traction with 439 GitHub stars.

#SQL Server#Performance Monitoring#Database Administration#Real-time Alerts#AI Analysis#Open Source#T-SQL#.NET

Features

0132 specialized T-SQL collectors for various metrics (wait stats, query performance, deadlocks, etc.).

02Real-time alerts for critical issues like blocking, deadlocks, and high CPU, delivered via system tray and email.

03Built-in MCP server offering AI-powered analysis with LLM clients like Claude Code for interpreting monitoring data.

04Graphical plan viewer with native ShowPlan rendering, 30-rule PlanAnalyzer, and standalone mode.

05No telemetry or cloud dependency; all data remains on your server and machine.

Why choose it

+32 specialized T-SQL collectors for various metrics (wait stats, query performance, deadlocks, etc.).

+24/7 production SQL Server monitoring and long-term performance baselining.

+Covers 6 supported environments or platforms, which is helpful for broader deployment needs.

+Ships with a public repository and a MIT license, which makes adoption and review easier.

Trade-offs

!There are at least 8 related tools in the same category, so the best choice is easier to make after side-by-side comparison.

Compatibility

SQL Server (2016-2025)

Target Database

Verified via docs

Azure SQL Managed Instance

Cloud Platform

Verified via docs

AWS RDS for SQL Server

Cloud Platform

Verified via docs

Azure SQL Database

Cloud Platform (Lite)

Verified via docs

.NET 8 Desktop Runtime

Runtime

Verified via docs

Windows

Operating System

Verified via docs

Quick start

$ PerformanceMonitorInstaller.exe YourServerName

Use cases

↳24/7 production SQL Server monitoring and long-term performance baselining.

↳Rapid troubleshooting and 'firefighting' on SQL Server instances, including locked-down or cloud environments like Azure SQL DB.

↳Consultants needing to quickly assess server health without installing anything on the target server.

↳Leveraging AI/LLM tools (like Claude Code) for in-depth analysis of collected monitoring data.

How it compares

≈PerformanceMonitor sits in the RAG / Knowledge Base category, so it makes more sense to evaluate it alongside tools like mindsdb instead of in isolation.

≈If your main need is closer to "24/7 production SQL Server monitoring and long-term performance baselining.", that use case is a better lens for comparison than broad feature checklists alone.

≈PerformanceMonitor uses a MIT license, and community traction are both easier to judge in category context.

Alternatives

mindsdb★ 39.5k

Federated Query Engine for AI - The only MCP Server you'll ever need

Features

Why choose it

Trade-offs

Compatibility

Quick start

Use cases

How it compares

Alternatives

Related searches

Comments

Features

Why choose it

Trade-offs

Compatibility

Quick start

Use cases

How it compares

Alternatives

Related searches

Comments