Please run one script and report runtime numbers for performance comparison

Hardware Arduino Zero
1

Hi,

at least some people reading this forum should have access to an Arduino Zero.

Please run the sketch attached to this thread
http://forum.arduino.cc/index.php?topic=391511.0

and report the numbers (for -Os size optimized default and -O3 optimized, you can change in Arduino IDE platform.txt) in this thread
http://forum.arduino.cc/index.php?topic=397480.msg2740647#msg2740647

for comparison of >16MHz Arduino models (and ESP8266-12E) pure integer computing performance on a single sample. I have determined the numbers for Arduino Due and ESP8266-12E already.

Thanks for your support,

Hermann.

2

Can somebody please run the sketch on Arduino Zero?

nathancamp provided both Arduino 101 numbers here.

This is the updated table while waiting for MKR1000 and Arduino Zero numbers:

model -Os -O3 speed processor Wifi
101 846 791 32MHz Intel® Curie -
Due 548 494 84MHz ATSAM3X8E -
MKR1000 48MHz SAMD21 Cortex-M0+ yes
Zero 48MHz ATSAMD21G18 -
ESP8266-12E 612 304 80MHz Tensilica Xtensa LX106 yes

Hermann.

3

What's the point of this? You're comparing processors that quite frankly can't be compared to each other.

4

Here you are, for the zero (actually a .org m0):
with -Os:

47| 29|101|
113| 59|  5|
 17| 89| 71|

1038us

With -O3:

47| 29|101|
113| 59|  5|
 17| 89| 71|

825us
5

You can change the compiler's optimization setting by using the #pragma directive at the beginning of your sketch:

#pragma GCC optimize ("-O3")    // Optimise the compiler for speed over code size