Kevin Frie, development lead for core parts of the CLR recently posted about what CLR updates that come in 3.5 SP1 .... NGen infrastructure rewrite : the new infrastructure uses less memory, produces less fragmented NGen images with much better locality, and does so in dramatically less time. What this means to you: Installing or servicing an NGen image is much faster, and cold startup time of your NGen’ed code is better. Framework Startup Performance Improvements : The framework is now better optimized for startup. Better OS citizenship : We’ve modified NGen to produce images that are ASLR capable, in an effort to decrease potential security attack surface area. Better 32-bit code...(read more) ...
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