Solved by JuanFMontesinos in post #5 
              
              
                Hi, I think your time_tot reflects the amount of time it needs to process an epoch. I don’t know how meters work but the last timing 'time_tot'=t5-t0 is measuring the amount of time you need to process an epoch as t0 is outside the for loop. 
I find it’s difficult to measure the time it takes to loa…