On Thu, 10 Sep 2020 12:47:40 +0100, The Natural Philosopher wrote:

> Looking at my 'I only do one thing' Pi running 94 different processes,
> realistically how many of them do I need? And how could I get rid of
> them?
>
> I want to examine the pi as a reasonably real-time signal processing
> unit.
>
> I don't need disk access except to load the code. I may not need network
> access. I don't need logging. I sure don't need systemd. I don't need a
> gui.
>
> I just want to run one high priority daemon and one lower priority
> demon, with shared memory between them...is there something simpler than
> Linux? More like e.g. DOS?

I believe there is a real time os in development somewhere - have you
looked for it? You might also check out arch and gentoo,or maybe risc os.

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