threadpool-cpu

What problem does it solve?

This skill eliminates the guesswork in diagnosing .NET application performance issues caused by thread pool starvation and CPU bottlenecks, which are common but hard-to-trace root causes of high latency and low throughput in ASP.NET Core services.

Core Features & Use Cases

• Metric Interpretation: Clear explanations of key thread pool and CPU metrics (queue length, thread count, CPU time) with notes on .NET version compatibility for built-in metrics.
• Issue Pattern Recognition: Defined patterns for common problems like persistent thread pool queue length (indicating blocking I/O on the thread pool) and high CPU usage with low queue length (indicating CPU-bound work overload).
• Sample Monitoring Queries: Ready-to-use PromQL snippets to pull the relevant metrics from Prometheus-compatible monitoring systems. Use case: For example, a backend engineer responding to a P99 latency alert can use this skill to quickly cross-reference thread pool and CPU metrics to narrow down the root cause without manual trial and error.

Quick Start

Use the threadpool-cpu skill to analyze your .NET application's thread pool queue length and CPU usage metrics to identify the root cause of performance degradation.