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By mswatcher
via interact-sw.co.uk
Submitted: Feb 18 2013 / 00:50

In my previous blog, I compared synchronous and asynchronous methods for reading data out of some web server log files and showing them in a WPF user interface. The first synchronous version took 2.6 seconds to process about 180,000 lines, and the naive asynchronous equivalent took 8.5 seconds. With a subtle change of order, I was able to get these figures down to 1 second for the synchronous code, and 2.8 seconds for the asynchronous code. The trick was to prevent WPF’s data binding system from seeing the data until we had finished loading all of it.
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