Check Top CPU Queries in 45 Seconds. From Symptoms to Root Clause. The "45 Seconds DBA Series" – What Real DBAs Check First | Part 7 🥇
Before we dive into today's topic, if you missed my previous post you can take a look at Check Memory Grants in 45 Seconds. From Symptoms to Root Clause. The "45 Seconds DBA Series" – What Real DBAs Check First | Part 6 🥇 . 👉 If you found this deep-dive helpful, feel free to check out the ads—your support helps me keep creating high-quality SQL Server content for the community. Identifying high CPU pressure is step one; finding the specific query pulling the trigger is where the real work begins. In this post, I’ll show you how to unmask the top CPU killers in your plan cache in under 45 seconds. TL;DR ✔️ Worker Time vs. Elapsed Time: High worker time relative to duration indicates a CPU-bound query or heavy parallelism. 🛠️ ✔️ Plan Cache Mining: Use sys.dm_exec_query_stats to find the highest cumulative CPU consumers since the last restart. 📦 ✔️ Focus on Execution Count: A query that runs 1 million times c...
