PCSX2 Documentation/Benchmarking Multithreaded PCSX2: Difference between revisions

As most people probably know, PCSX2 is primarily a dual-thread application.  The two main threads are described as such:

The solution to this problem is to use a more traditional method of manual load checking: timing various sections of code executed in-thread via either the aforementioned rdtsc (timestamp) or QueryPerformanceCounter, read at key points in the GS thread's execution/program flow.  This wasn't such a great idea a few years ago, due to K8/Athlon and P4 generation CPUs lacking a stable internal clock counter.  Fortunately, all modern CPUs have a consistent counter suitable for benchmarking, so the pitfalls that have been long associated with using Intel/AMD timestamps are finally obsolete enough to not be a concern for us here.