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A Language for Software Architecture by JD Meier in The Architecture Journal
J.D. Meier is a Principal Program Manager for Microsoft’s Patterns & Practices team.  He’s a great writer & a clear thinker.  J.D.’s Sources of Insight is devoted to getting results & balancing life. His latest-&-greatest publication Read More...
Posted 28 April 09 09:41 by Jimmy May | 0 Comments   
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Disk I/O Case Study: Classic Case of SAN Over-Subscription
SAN Over-Subscription There are a variety of challenges related to I/O performance. One common problem is "SAN Over-Subscription", which is characterized by the the following symptoms: High disk latency and Low IOPs & Throughput As MS PFE & fellow Read More...
Posted 15 March 09 09:21 by Jimmy May | 2 Comments   
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sp_reset_connection Does NOT Reset TRANSACTION ISOLATION LEVEL: Unexpected Behavior By Design
I've long been an advocate of the best practice of explicitly setting the transaction isolation level in my scripts. At my old day job as an enterprise architect I mandated that along with SET NOCOUNT ON , the preamble for all SProcs explicitly must declare Read More...
Posted 02 February 09 12:44 by Jimmy May | 6 Comments   
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Case Study: Part 1: CXPACKET Wait Stats & 'max degree of parallelism' Option: Introduction to Using Wait Stats to Identify & Remediate Query Parallelism Bottlenecks
This is the first of a four-part series: Introduction to Query Parallelism (this post) Flipping the Bit Expensive Query Identification & Remediation Summary Query Parallelism The SQL Server configuration option max degree of parallelism determines Read More...
Posted 28 November 08 01:29 by Jimmy May | 3 Comments   
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SQL Server: 4-Step Performance Troubleshooting Methodology--Introduction
Introduction: The Classic Protocol, Amended Introduction My customers are often surprised to learn about the existence of a documented methodology for troubleshooting SQL Server performance. Though the document is well-known, many customers fail to appreciate Read More...
Posted 01 September 08 11:00 by Jimmy May | 6 Comments   
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