[Cuis-dev] Running Cuis in a BBB rev C. (similar to RPi). a video performance check

[Joseph Turco]

To be honest, if the only problem with squeak VM on raspberry pi zero w was window lag, I could live with it. But the input lag and also the VM being slow overall means its not usable at all. I really wish I didn't sell my other raspberry pis....

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-------- Original Message --------
On Jul 20, 2021, 10:08 AM, Nicola Mingotti via Cuis-dev wrote:

> hi Bruce,
>
> i just made a test with a bit fatter machine (2Ghz, 2cores) , it works all like a charm.
>
> I see in the first page I found on internet your RPi 400 is a quadcore 1.8 ghz, it should rock !
> Your little computer is about 8 times more powerful than the ARM I was using.
> Aggregated CPU load should never exceed 5-10%, for running Cuis in your PI.
>
> Try to change protocol. I always use VNC because every OS can be a client.
>
> I am going to air a video shortly on how to run Cuis in a headless machine with VNC,
> it is quite easy once one knows what to type ;) You might to try to give it a spin that way.
>
> I am pretty sure i downloaded by hand Squeak-cog-spur-5.0-2019-01-17-23-23 for ARM6, linux 32.
> I just copied what comes by default with stock Cuis following Juan notes on Github.
> For the image, i just cloned the git.
>
> bye
> Nicola
>
> On 7/20/21 3:34 PM, Bruce O'Neel wrote:
>
>> Hi,
>>
>> Possibly related, this on a Raspberry PI 400 with X11 across the network I noticed two things.
>>
>> 1. Moving Cuis windows is slower because it does the pretty thing and move the whole windows. Squeak just moves an outline which is unsuprisingly much faster.
>>
>> 2. I am almost 100% sure there is a double re-draw at times. It might be that each window gets redrawn and I have almost the whole screen covered by windows.
>>
>> This was all with the Squeak VM that ships with the PI, so, 202101191919 and Cuis5.0-4619-32.
>>
>> cheers
>> bruce
>>
>> On 2021-07-20T12:25:39.000+02:00, Nicola Mingotti via Cuis-dev [<cuis-dev at lists.cuis.st>](mailto:cuis-dev at lists.cuis.st) wrote:
>>
>>> Hi guys,
>>>
>>> I just finished a little test showing how a Cuis can run in a BeagleBone Black Rev. C.
>>> which is a device similar to a RPi but most fit to electronics projects.
>>>
>>> . BBB is headless
>>> . I connect to BBB via VNC
>>> . There is no desktop environment, Cuis is the only graphical application running
>>>
>>> I need to do at least another test on a bigger machine to see what part of the sloppiness is due to VNC and what is due to a small CPU,
>>> but my temporary conclusion is that this kind of hardware is too little to work well in Cuis.
>>>
>>> here is the video:
>>> https://youtu.be/sDDrBXB4K6A
>>>
>>> bye
>>>
>>> Nicola
>>>
>>> ---------------------------------------------------------------
>>> -- Cuis-dev mailing list Cuis-dev at lists.cuis.st https://lists.cuis.st/mailman/listinfo/cuis-dev
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