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SQL SERVER - OS Threads Used by SQL Scheduler - SQL Authority with Pinal Dave

 3 years ago
source link: https://blog.sqlauthority.com/2021/05/07/sql-server-os-threads-used-by-sql-scheduler/?utm_campaign=sql-server-os-threads-used-by-sql-scheduler
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SQL SERVER – OS Threads Used by SQL Scheduler

Today we will answer the question asked by my client during  Comprehensive Database Performance Health Check, about OS Threads Used by SQL Scheduler. Well, let us see a simple script for the same, which I had earlier blogged SQL SERVER – Simple Script to Match Session ID to OS Thread ID.

SQL SERVER - OS Threads Used by SQL Scheduler OS-Threads-800x154

SELECT osTask.session_id, osThreads.os_thread_id,
osTask.scheduler_id, osTask.task_state
FROM sys.dm_os_tasks AS osTask
INNER JOIN sys.dm_os_threads AS osThreads
ON osTask.worker_address = osThreads.worker_address
WHERE osTask.session_id IS NOT NULL
ORDER BY osTask.session_id;
GO

When you run the script above it will give you a result similar to the following image.

SQL SERVER - OS Threads Used by SQL Scheduler sessionidtoosthreadid

Using this simple script you can easily figure out which OS Threads are used by SQL Server. Additionally, you can know the scheduler_id and session_id along with it. Well, a short blog post for today. Let me know your thoughts about it in the comments section. I try to reply to each comment.

Let me know if you are interested to know more about this topic. I will write more blogs as well as create an SQL in Sixty Seconds video.

Here are my few recent videos and I would like to know what is your feedback about them.

Reference: Pinal Dave (http://blog.SQLAuthority.com)

Pinal Dave is an SQL Server Performance Tuning Expert and independent consultant with over 17 years of hands-on experience. He holds a Masters of Science degree and numerous database certifications.

Pinal has authored 12 SQL Server database books and 37 Pluralsight courses. To freely share his knowledge and help others build their expertise, Pinal has also written more than 5,500 database tech articles on his blog at https://blog.sqlauthority.com.

Pinal is an experienced and dedicated professional with a deep commitment to flawless customer service. If you need help with any SQL Server Performance Tuning Issues, please feel free to reach out at [email protected].

Pinal is also a CrossFit Level 1 Trainer (CF-L1) and CrossFit Level 2 Trainer (CF-L2).

Nupur Dave is a social media enthusiast and an independent consultant. She primarily focuses on the database domain, helping clients build short and long term multi-channel campaigns to drive leads for their sales pipeline.

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