[Info-vax] CRTL and RMS vs SSIO

chris chris-nospam at tridac.net
Sat Oct 16 09:02:47 EDT 2021


On 10/16/21 00:50, Lawrence D’Oliveiro wrote:
> On Saturday, October 16, 2021 at 7:11:35 AM UTC+13, chris wrote:
>
>> On 10/15/21 02:07, Lawrence D’Oliveiro wrote:
>
>>> If you want to look at which is the single biggest company that is contributing to
>>> Linux, that would have to be Microsoft.
>>
>> Well, warning, that may eventually be the kiss of death for Linux.
>
> They already tried that. Remember “Linux is a cancer”? All the patent threats? Remember the infamous “Get The Facts” campaign? Though that kind of fell apart after the London Stock Exchange brouhaha...
>
> I know all about “Embrace, Extend, Extinguish”. Linux has already felt the full force of those “Extinguish” efforts, on multiple fronts, and come out, if anything, stronger than ever.
>
> Heard about WSL? Though in that case, note that the platform that Microsoft is “Embracing” and “Extending” is not Linux, but Windows. So what do you think will happen next?
>
>>> Umm, Netgate dropped from FreeBSD? But they practically *are* FreeBSD. And
>>> which “individual”? There are a number of individuals associated with the company,
>>> who have done dubious things as reported in the article. Which you did read the
>>> whole of, didn’t you?
>>>
>> Need some documentary evidence for that, not just arm waving.
>
> Funny, you were willing to take the article as exactly this sort of

“documentary evidence”, until it was pointed out you didn’t actually 
understand it...

Opinion, but you are still ignoring the request for evidence.

>
>> I've seen a fair amount of embedded Linux, but none of those versions
>> included systemd, nor a lot of the other cruft that current distros
>> suffer from.
>
> But weren’t you complaining that Linux _couldn’t_ be de-bloated?
>
>> Linux may be ok for undemanding embedded
>> tasks, but still a great risk to select it for hard real time work.
>
> Remember the helicopter that NASA sent to Mars? Guess what OS that’s running...

Not at all. Try reading the whole article, rather than cherry
picking :-). Had you done so, you would realise that the company
and individual concerned have been dropped from the project.

I'm sure Linux is very popular, and there are claimed real time
variants, but bet none of those have systemd inside. Just not
needed for stripped down embedded work. Trad Linux would have
mS or worse response times, or just indeterminate, whereas real
time needs tick accurate uS.

Vax and VMS were real time capable decades ago. RtVax, from memory...

Chris




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