[Swlug] Interesting variations

[Neil Greenwood]

The number of interruptions from other things the Pico is processing will
cause the variations you are seeing. This is completely normal, and a
consequence of pretending to be able to do many things all at the same time.


Neil

On Sat, 27 May 2023, 02:37 Rhys Sage via Swlug, <swlug at mailman.lug.org.uk>
wrote:

> I probably shouldn't be trying this after a 12 hour workday but...
>
> I put a short bit of code into the Pi Pico in Python and get different
> results each time. This is very curious...
>
> #test counter versus counting
> import time
> Min = 0
> Max = 100
> Tix = 0
> tim1 = time.ticks_us()
> for x in range(Min, Max):
>   Tix += 1
> tim2 = time.ticks_us()
> print(tim2 - tim1)
> print(Tix)
>
> Actual output...
> >>> %Run -c $EDITOR_CONTENT
> 1185
> 100
> >>> %Run -c $EDITOR_CONTENT
> 1064
> 100
> >>> %Run -c $EDITOR_CONTENT
> 1069
> 100
> >>> %Run -c $EDITOR_CONTENT
> 1054
> 100
> >>> %Run -c $EDITOR_CONTENT
> 1053
> 100
> >>> %Run -c $EDITOR_CONTENT
> 1054
> 100
>
> I would have expected the top value to be the same down the list.
>
> Rhys Sage
>
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