SQL Server Performance Tuning

Characterizing I/O Workload

In order to determine an application’s ideal storage system and disk quantity, it’s important to understand the type and volume of I/O the application will generate. This article will focus on the different types of I/O, the metrics used to classify workload, and methods used in measuring and estimating values for the I/O metrics. OLTP […]

Resource Governor in SQL Server 2008

SQL Server 2008 introduces a new feature called Resource Governor which enables Database Administrators to manage SQL Server workload and critical system resource consumption. Resource Governor enables DBA to specify limits on the amount of CPU and memory which the incoming sessions to the SQL Server can use. In a production environment DBA’s will come across scenarios […]

SQL Server Performance Coding Standards

1. Avoid using “*” in SELECT queries Always specify the required list of columns in the select list. This will ensure that only the columns required by the query are returned to avoid unnecessary I/O and processing.   2. Always use variables of the appropriate data type and size Use appropiate data types to avoid implicit data type conversion being perfromed […]

System Data Collection Reports

In my last article (http://sql-server-performance.com/articles/per/Management_Data_Warehouse_p1.aspx) I introduced one of the new SQL Server 2008 features known as the Management Data Warehouse (MDW).  In that article I described how to install the components that make up the MDW.  Now I’m going to expand on the subject and write about the rich reporting capabilities that Microsoft has […]

Breaking Down Complex Execution Plans

As a DBA, whether working as a full time employee of a company or as a consultant, you’re often handed stored procedures or queries long after they’ve been “finished.” These finished queries are frequently enormous, free-flowing affairs with between 50 and 500 statements joining up to 80 tables, views, derived tables and functions. Together they […]

How SQL Cluster Resource DLLs work with Cluster Components to Improve the Failover Process

The objective of this article is to explain the SQL Server clustering internal process.  This article will explain the functions used to interact with the cluster components. The article doesn’t really show how to cluster SQL Server. Most of this article talks about SQL Server 2000 but the same information applies to later versions of SQL […]

SQL Server 2008’s Management Data Warehouse

I’ve been on a performance kick lately.  I’ve been sharing with you how to use SQL Server 2005 DMVs and DMFs to identify the resource intensive queries for SQL Server 2005.  Well now I’m going to switch gears and look at SQL Server 2008 and discuss one of the new concepts known as Management Data […]

Data Comparison with Data Dude

I have already written two articles regarding Data Dude (aka Visual Studio Team Edition for Database Professionals); one published as Schema Comparison with Data Dude and other published as Test Data Generation with Data Dude. This is my third article regarding Data Dude, and in this article I will illustrate the way of doing “Data Comparison” with […]

New Features in ASP.NET 3.5

ASP.NET has for long been a popular web application development platform. ASP.NET 2.0 added a lot of new features compared to its earlier counterpart, i.e., ASP.NET 1.1. With ASP.NET 3.5, you have even more features. This article will present the new features that have been added to ASP.NET and Visual Studio 2008. Fine, but, what’s […]

How to Use System Monitor to Identify SQL Server Hardware Bottlenecks

Performance Audit Checklist  Counter Name    Average   Minimum   Maximum   Memory: Pages/sec        Memory: Available Bytes        Physical Disk: % Disk time        Physical Disk: Avg. Disk Queue Length        Processor: % Processor Time        System: Processor Queue Length        SQL Server Buffer: Buffer Cache […]
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