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+---- Thread: CPU Usage? (/showthread.php?tid=1779)
CPU Usage? - Shina - 08-12-2010
Question. Why does JPCSP use so much CPU? My CPU temp goes up to near 60c from it's idle temp of 45c. Most games I play usually is around 52c-55c.
RE: CPU Usage? - Agent69 - 08-15-2010
Just use linpack, and see temp over 70c
JPCSP can utilise ~30% cpu power of phenom x4 965 (3.8ghz) (no cores loaded over 70%). .. but it have really slow video engine.
RE: CPU Usage? - Shina - 08-15-2010
linpack?
RE: CPU Usage? - yann - 08-17-2010
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.