Performance Troubleshooting with Windows Resource Monitor - Part 2
In the second part of the Resource Monitor series we conclude with a look using the Memory tab and Disk tab to diagnose performance issues.
2011-04-26
4,198 reads
Performance Tuning
Performance Troubleshooting with Windows Resource Monitor
Windows Resource Monitor can be a very useful tool for initial diagnosis of performance issues. In this two part series we look at how to troubleshoot performance issues using Resource Monitor.
2011-04-19
3,686 reads
An nHibernate Head Scratcher
An interesting mystery on why some nHibernate performance issues might exist on your systems. Read this piece from SQL Server expert David Poole and look to see if this is a problem you can easily solve in your environment.
2011-04-11
6,171 reads
SQL Server Index Maintenance Performance Tuning for Large Tables
This article describes a real-world example of performance tuning index maintenance for a large table of approximately 1 billion rows.
2011-03-30
5,886 reads
How to Identify CPU Bottlenecks in SQL Server
We experience regular slowdowns on our MS SQL database. After analyzing the memory usage we would like to continue the root cause investigation by examining CPU bottlenecks. What is your recommendation to recognize CPU related bottlenecks in SQL Server?
2011-03-15
6,215 reads
Slow in the Application, Fast in SSMS? Understanding Performance Mysteries
When I read various forums about SQL Server, I frequently see questions from deeply mystified posters. They have identified a slow query or stored procedure in their application. They cull the SQL batch from the application and run it in SQL Server Management Studio (SSMS) to analyse it, only to find that the response is instantaneous. At this point they are inclined to think that SQL Server is all about magic. A similar mystery is when a developer has extracted a query in his stored procedure to run it stand-alone only to find that it runs much faster – or much slower – than inside the procedure.
2011-03-07
5,326 reads
2011-02-21
2,539 reads
Which of Your Stored Procedures are Using the Most Resources?
Dynamic Management Views and Functions aren't always easy to understand. However, they are the easiest way of finding out which of your stored procedures are using up the most resources. Greg takes the time to explain how and why these DMVs and DMFs get their information. Suddenly, it all gets clearer.
2011-01-31
5,532 reads
Trending Buffer Pool Performance Using DMV sys.dm_os_performance_counters
I'd seen you posted a tip on capturing SQL based PerfMon counters using sys.dm_os_performance_counters. What queries can I run against those stored results that would allow me to examine memory usage on my SQL instance?
2011-01-13
2,548 reads
Wait statistics, or please tell me where it hurts
How many times have you walked up to a SQL Server that has a performance problem and wondered where to start looking?
2010-12-16
5,016 reads
Blogs
Why sys.fn_dblog Is Undocumented And Why It's Still There
By SQLPals
Why sys.fn_dblog Is Undocumented And Why It's Still There Why sys.fn_dblog...
T-SQL Tuesday #202 SQL Server Outage You’ll Never Forget: A Roundup
When I put together the invitation for T-SQL Tuesday #202, I wasn't sure what...
A Last Minute Trip to the EU
By Steve Jones
My life has some crazy travel stretches for sure. Between speaking, office visits, customer...
Forums
Implementing Type 4 Slowly Changing Dimensions in SQL Server
Comments posted to this topic are about the item Implementing Type 4 Slowly Changing...
The Disabled Index
Comments posted to this topic are about the item The Disabled Index
Server-Level Table sizes
Comments posted to this topic are about the item Server-Level Table sizes
Question of the Day
The Disabled Index
I run this code on SQL Server 2022.
CREATE TABLE Drink
(
drinkid INT NOT NULL
CONSTRAINT DrinkPK PRIMARY KEY CLUSTERED,
drinkname VARCHAR(20),
rating NUMERIC(2, 1)
)
GO
INSERT INTO Drink
(
drinkid,
drinkname,
rating
)
VALUES
(1, 'Margarita', 4.5),
(2, 'Mojito', 4.3),
(3, 'Old Fashioned', 4.7),
(4, 'Martini', 4.4),
(5, 'Cosmopolitan', 4.2)
GO
ALTER INDEX drinkpk ON dbo.drink DISABLE
GO
SELECT * FROM dbo.Drink
GO
What is the result? See possible answers