Assembly: mscorlib (in mscorlib.dll)
Enables optimization profiling for the current application domain, and sets the folder where the optimization profile files are stored. On a single-core computer, the method is ignored.
Starts just-in-time (JIT) compilation of the methods that were previously recorded in the specified profile file, on a background thread. Starts the process of recording current method use, which later overwrites the specified profile file.