Microsoft Research has released Doloto (1.56MB) on MSDN DevLabs. Doloto, which stands for Download Time Optimizer, is a tool that makes pages more responsive by decreasing the initial download size of complex AJAX applications. The only requirement for the small tool is .NET Framework 3.5. Microsoft says that while AJAX applications bring a variety of rich user experiences to the Web, they often require downloading a lot of code and as a result are slow to load. Doloto manages to mitigate this problem quite well.
So, how exactly does it work? S. Somasegar, senior vice president of Microsoft's Developer Division, breaks the process down into three steps:
2. Profiling information is used to calculate code coverage and a clustering strategy. This determines which functions are stubbed out and which are not and groups functions into batches which are downloaded together, called clusters.
More information on Doloto is also available on the tool's Microsoft Research webpage, on MSDN DevLabs, and on the Doloto forums.
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Source: ars technica
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