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by chj 3471 days ago
The speed up is easy to explain. Instead of launching gcc 50 times, it's now once for all.
1 comments

Exactly :) I come from a .net background, where compile times are kinda bad compared to what I get in C. I had also heard of big C++ projects that could take more than 30 mins to build. So I was always scared to move to native code. Until I learned the single compilation unit trick! And if compile times were to get slow again, there are many more ways to bring it down even further,
Since when are .Net compile times worse than c? Csc compiles extremely fast, most long compile times are caused by msbuild doing... not much at all really.