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Recently I wanted to go over again Rick Vicik papers on high performance programs on the Windows platform. These papers are a true Bible for anyone in need to write truly highly scalable and high performance server applications. They address the back end C/C++ programming and explain how to properly use the Windows threading, optimize I/O and specially the importance of data cache conscious programming, NUMA object allocations and access locality and impact of data sharing on performance. I do find however that many of the principles explained there apply just as well to C# and .Net programming. I wanted to refresh my memory on some issues so I searched for them and to my delight I found that Rick updated the papers for Vista and Windows 2008 and had posted them as a three part series on the Windows Performance blog and I wanted to share these with my blog audience:

• Designing Applications for High Performance - Part I
• Designing Applications for High Performance - Part II
• Designing Applications for High Performance - Part III

Mr. Denny has a take at the conversation reuse and recycle topic: http://itknowledgeexchange.techtarget.com/sql-server/improving-sql-service-broker-performance/. This solution allows for a more flexible policy on conversation reuse replacing the hard coded @@SPID affinity I used in my original post with an application specific settings table.

You may have noticed that the post comments on the site are no longer displayed. Unfortunately I could no longer manage the amount of spam post I had to go through every day so for the moment I removed completely the possibility to post comments. I apologize for the inconvenience but right now I’m going to have to ask you to use the contact form if you wish to give feedback on an article. Your old comments are still in the site database and I will look for a way to post them back on the blog articles.

And since we’re on the subject of site changes, I have added some time ago a star ratting system for you to rate posts and a content page at http://rusanu.com/articles.

There is an unofficial WCF channel for SQL Service Broker posted by David Browne on www.codeplex.com/ssbwcf. To quote from the project homepage: It allows the WCF developer to leverage SSB while staying within the WCF Service Model or Channel Model programming models. The WCF SSB transport provides durable, two-way queue-based communications that requires only SQL Server 2005/2008 as its infrastructure.

While looking at the Google Analytics report for this very blog I found a new refferal site: http://questservicebroker.blogspot.com/. A blog with “servicebroker” in its name, I had to check it out :). Turns out that Quest is working on the next generation of tools for Service Broker administration and has opened a blog to discuss new features and request feedback. These are the same tools I’ve blogged about before here. If you want to suggest features you’d like an Admin tool for Service Broker to have, now is your chance.