Robot Mesh Studio: FREE Flowol, Blockly and Python Programming for VEX

tabor473 · September 1, 2016, 6:55pm

Have there been any good benchmarks done recently? I know the speed was really lacking previously

Robot Mesh Python (and Blockly) for VEX EDR release [Free online programming]

One more benchmark result until I talk with Anthony privately.
def b2():
  while True:
    start = sys.clock()
    dgtl1.on()
    i = 0
    while i < 1000:
        i = i + 1
    dgtl1.off()
    duration = sys.clock() - start
    print "b2 loop end " + str(duration) + "s"
In EasyC it takes 0.2mS, in RobotC 5.4mS (due to VM), in PROS and ConVEX it usually gets optimized out but if I force the loop to run (declare the variable volatile) then it takes 0.17mS. In python it takes 75mS, 15x longer than RobotC and around 400x longer than the native C compilers. Now I realize that this is an artificial benchmark, but I’m seeing similar performance across the board which IMHO is going to make anything but trivial drive code (for example, my smart motor library) difficult to implement.

I’m measuring all times using a scope not the embedded timing statements I included above. note, the EasyC and RobotC measurements were made back in 2011 and I need to recheck with the current versions sometime.