Recommended Computer System Simulators

I am wondering if there are any computer system simulators that can run software on top of it, can mimic the characteristics of real hardware (for example, simulating the performance characteristics of a 5400 RPM hard disk and a 300MHz Pentium II at exactly that speed) and provide real-time performance statistics for the simulated system? The computer architecture doesn't have to be x86; it could be any 32- or 64-bit system such as PowerPC, SPARC, MIPS, Alpha, Itanium, ARM, RISC-V, etc. I understand that emulators such as QEMU exist, but I don't believe these emulators provide the simulated performance or the performance monitoring tools that I need.