Re: An idea for swap partition size vs. swap space size in use handling

On Jan 22, 2023, at 05:15, Mike Karels <mike@karels.net> wrote:

> On 22 Jan 2023, at 2:42, Mark Millard wrote:
> 
>> On Jan 22, 2023, at 00:21, Mark Millard <marklmi@yahoo.com> wrote:
>> 
>>> On Jan 21, 2023, at 23:17, Poul-Henning Kamp <phk@phk.freebsd.dk> wrote:
>>> 
>>>> --------
>>>> Mark Millard writes:
>>>> 
>>>>> It would be nice if I could have just one swap partition
>>>>> on a given boot media, one that is more than sufficient
>>>>> in size for all but the biggest RAM system --but to then
>>>>> be able to tell the system to just use up to the
>>>>> recommended swap space size and to ignore any extra swap
>>>>> space in the swap partition.
> 
> Why not just reduce the size of the swap partition to the desired size
> with “gpart resize”?  Granted, that requires manual intervention.

Why would I use the size for a 1 GiByte aarch64 system
(prior boot) when I'm using the media to boot the 64
GiByte system? So increases too. Manual intervention
every time I move the media between systems, going in
both directions over time?

That gets me into the business of independently
calculating a reasonable lower bound for the recommended
swap space every time I move the media between systems
with differing amounts of RAM. I've noticed that the
recommendation varies some across the OS updates. (My
guess is variations in the kernel space use is involved
in the recommendation.) I'm looking for something
avoiding such a redundant calculation, something that
just works given the variability across OS updates.


===
Mark Millard
marklmi at yahoo.com