08-17-2010, 08:46 AM
linpack is a package for linear algebra, used in rather heavy number crunching. The comment isn't terribly helpful. As for jpcsp's CPU usage, it's running a dynamic recompiler within a dynamic recompiler, emulating a foreign machine, and some of the code simply is inefficient. A more precise answer would require intimate knowledge of its workings or profiling.
In short, because emulating the PSP is less efficient CPU usage than running native games.
In short, because emulating the PSP is less efficient CPU usage than running native games.