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Monday, August 17, 2009 5:00 AM

What’s New in WCF 4: Performance

This list is a bit different in places from what you’ve seen in the beta 1 release and there’s always a chance that things might change again. The second part of the list covers some of the new features and changes to existing features to improve service
Posted by Nicholas Allen | 0 Comments
Thursday, August 13, 2009 5:00 AM

Using TCP Analyzer to Debug TCP Performance

Microsoft Research has a Network Monitor 3.3 plugin called TCP Analyzer that helps identify performance problems from a captured TCP session. TCP Analyzer takes a Network Monitor trace and performs visualization and analysis of the TCP connection. The
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Friday, July 17, 2009 5:00 AM

Tuning ConnectionBufferSize

Poor network utilization for large TCP data transfers is often a symptom of an overly small ConnectionBufferSize . The ConnectionBufferSize is the size of the send and receive buffers used by the connection oriented transports, and in particular the TCP
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Thursday, July 16, 2009 5:00 AM

CLR Beta 1 Survey

The CLR team has a survey for .Net 4.0 Beta 1 covering different aspects of performance, hosting, security, and application compatibility. If you’ve built new applications using beta 1 or you’ve tried recompiling or running older applications using beta
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Thursday, June 25, 2009 5:00 AM

WCF Load Test Tool 3.0 Beta

Rob Jarratt has updated the community-driven WCF load test tool with a new beta release. The test tool uses a trace captured from a previous run of a WCF service to automatically generate a test case that performs the same sequence of operations. This
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Friday, June 05, 2009 5:00 AM

Inside Changes to the CLR 4.0 Thread Pool

WCF naturally produces applications that are both heavily multi-threaded and IO intensive. That makes WCF application performance distinctly influenced at times by the characteristics of the CLR thread pool. The thread pool is a collection of work and
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Monday, June 01, 2009 5:00 AM

.Net Performance Survey

The CLR performance team is running a survey to get your feedback about what to focus on for performance in the .Net framework. This includes performance in the framework itself as well as performance profiling, optimization, and tuning for the applications
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Friday, May 22, 2009 5:00 AM

Tripping over Missing Servers

A common complaint is that the first call on a client object takes some disproportionately large amount of time, usually ten seconds or more, while successive calls are instantaneous. There are many reasons why this might happen so there's no generic
Posted by Nicholas Allen | 5 Comments
Tuesday, April 14, 2009 5:00 AM

WCF Tips and Tricks

Christian Weyer has a recent set of presentation slides covering tips and tricks for performance and configuration of WCF applications. I don't think there's a live recording available but the presentation is done in a question and answer format that
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Tuesday, March 17, 2009 5:00 AM

Duration Rounded Down

When I look at the performance counters in my service for the execution time of an operation, the value is always zero. Why? There's a variety of reasons I can think of for why call data may not be collected and all are relatively easy to check. First,
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Tuesday, March 03, 2009 5:00 AM

Memory Impact of Quotas

Will setting the receive quotas to large values cause my service to run out of memory? It depends on the messages that people send you. Assigning large values to quotas does not cause WCF to immediately allocate the amount of memory that you specify as
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Thursday, February 26, 2009 5:00 AM

Improving Hosted HTTP Request Scaling

A few months ago Wenlong Dong announced an improvement to HTTP request scalability when WCF is hosted in IIS. In order to take advantage of the improvement you need the combination of IIS7 or later and Orcas SP1 installed. Since this isn't the ubiquitous
Posted by Nicholas Allen | 1 Comments
Tuesday, October 21, 2008 5:00 AM

One Week Countdown

The last week has been a hard push to get everything ready for PDC. Yesterday I checked in the final changes I had to the slides and hope to spend quite a lot of time this week not thinking about the talk at all. This is probably the quickest I've had
Posted by Nicholas Allen | 0 Comments
Wednesday, October 15, 2008 5:00 AM

Proxy Caching Changes

I don't think I ever wrote about the changes made to WCF generated typed proxies in Orcas, although Wenlong had an article about the changes to proxy behavior back when they were made. Generated proxies are the ones produced from the standalone client
Posted by Nicholas Allen | 1 Comments
Monday, October 13, 2008 5:00 AM

Scaling a Talk

As I mentioned a few days ago, we were tweaking the published details of my talk a bit to better reflect the talk style and content . Here's the updated blurb if you haven't seen it. WCF: Zen of Performance and Scale by Nicholas Allen Join us for an interactive
Posted by Nicholas Allen | 0 Comments
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