VS 2010 very slow

Question

I have just upgraded to VS 2010, and I have performance problems which I did not have before (in VS 2008).

The most annoying thing is that it freezes while I work in

Answer 1

Try setting the number of parallel builds to half the number of cores you have (I think its in options, settings, Solutions and Project, build and run).. I had it set to 8 which was too much.. it spawned 8 msbuild.exe, rebuilding a solution with 70 projects bottlenecked the disk when they all tried to read/writte similar pre-compiled headers. Those msbuild's stick around even after you close the IDE.

Also I disabled the gather browsing info for implicit files, which made intellisense parsing quicker.