On 2020-08-25, Jim Jackson  wrote:
> On 2020-08-25, Ottavio Caruso  wrote:
>> On 23/08/2020 21:50, Ottavio Caruso wrote:
>>>
>>
>> My OP:
>>
>>>
>>> My current Thinkpad is dying and I was wondering if the Raspberry Pi 4-B
>>> 8GB would be a half-decent laptop replacement, obviously with the
>>> addition of a portable monitor (suggestions?) and an external drive.
>>
>> Thank you all for the input.
>>
>> I just wanted to point out that my choice would go for NetBSD because,
>> it seems, NetBSD can use all the 8GM RAM, while other OSes, including
>> Raspbian, can only use 3GB RAM. I haven't really looked into details of
>> why this happens, but I suspect it has to do with NetBSD using the Pi in
>> real 64bit mode, while Raspbian running in 32-bit mode, both in kernel-
>> and user-land. I could be wrong. I've asked around but I didn't get much
>> feedback; maybe you could help.
>
> Not true. 32bit RaspberryPI OS can use all the memory, but each process
> is limited, basically to 2GB(*). So if you need more for one process then
> you will need a 64bit OS. They are working on a 64bit version of
> RapberryPI OS, but I am not sure what stage it is at.
>
> Jim
>
> (*) 3GB with some voodoo which I don't understand :-)

Ooops, I think that maybe 3GB and (*) 4GB.

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