Comments and code on event-driven computing and cloud, among others.
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Various implementations of Rx
18 Mar 2013
Computing event duration using Rx
If you've looked at IIS logs, you've probably noticed that there are events for when a request is received and when the response is sent (see a typical request ). It's useful to understand average duration per request if you're examining the health of your system. Alas, there's no "duration" event. Sure...
18 Feb 2013
How to express common windowing patterns using Rx
When processing continuous streams, one is usually interested in continuous answers broken into epochs or periods of time. Usually, the computations one formulates feel more like "compute the average speed per road segment every 5 minutes" than "what is the average speed in this road segment given all...
17 Jan 2013
A simple feedback loop in Rx
Feedback loops are very common and incredibly useful. Unsurprisingly, my colleagues and I keep finding these loops in distributed systems. I thought I’d blog about a simple pattern to express them in Rx. Many thanks to Valery Mizonov, Erik Meijer, and Colin Meek for a fruitful discussion about...
30 Jun 2012
Sequences and StreamInsight: Initiating a computation
Colin Meek, Alex Raizman, and I recently blogged about the various gestures that initiate a computation in StreamInsight. The discussion is most relevant with Sequence Integration when the StreamInsight engine is hosted in-memory. Check it out: http://blogs.msdn.com/b/meek/archive/2012/03/21/sequences...
22 Mar 2012
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