System simulations have been designed using MATLAB / Stateflow program. I want to calculate the execution time of the simulations under different system conditions for the purpose of comparison. Note that when calculating the execution time using tic and toc commands, each time it gives different results as is known.
Before writing you m-file you need to write:
clc;
clear all;
[ your program with tic ...............toc]
You may also wish to use the compiler, which always starts at the same place. If you post your code, we can comment more.
This is a typical problem. A general purpose computers assigns the processing time intelligently. The objective of computer is to process multiple programs at a time. Please note high priority programs will get more attention than lower one. Please try to change the priority of execution and check. But still I feel it would extremely difficult to compute the exact processing time in a system running many programs.
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