AM2634-Q1: MIPS Calcualation

Hi Anoop,

The ARM Cortex-R5F floating-point CPUs operating in lockstep on TMS570LC43x device offers 1.66 DMIPS/MHz. I think we can use this number to estimate the DMIPS value of AM2634 which uses the same ARM core: 1.66*400Mhz = 664 DMIPS.

To estimate the MIPS (Million Instructions Per Second) for a particular function, you divide the CPU clock frequency (400MHz) by the average number clock cycles an instruction takes on AM2634. The FPU can be used to measure the cycle count used by the function, and count the number of instructions of the function in disassembly window, the MIPS=CPU frequency*#of instructions/cycle counts.

is it possible to get the assembly instructions/mnemonics details with time of execution for Am263. ?

Regards

Anoop 

Hi Anoop,

1. you can count the instructions in your function from disassembly window

2. you can try the event number 0x08 which is the instructions architecturally executed. I didn't use this event before, so I don't know if it counts all the executed instructions precisely. 

Ok Wang, i understood your point, what i am asking is whether TI have any documents showing the mnemonics vs T states required for its execution.

Regards