Have you ever used ngen.exe?

Question

Has anybody here ever used ngen? Where? why? Was there any performance improvement? when and where does it make sense to use it?

Answer 1

Yes, I tried it with a small single CPU-intensive exe and with ngen it was slightly slower!

I installed and uninstalled the ngen image multiple times and ran a benchmark.

I always got the following times reproducable +/- 0.1s: 33.9s without, 35.3s with