**Integer addition**

Code: Select all

```
def int_add_test(n=1000000, a = 1234, b = 5678):
sum = 0
for i in range(n):
sum = a + b
```

**Integer multiplication**

Code: Select all

```
def int_mul_test(n=1000000, a = 1234, b = 5678):
sum = 0
for i in range(n):
sum = a + b
```

But I have meet gc problem when I did float division calculation test, so I give up test.

Finally, K210 is a little faster than STM32F4, but slower than STM32F7 and ESP32.