if whatever you are running on said machine is going to be useless if
you are swapping you don't need much swap. The apps I deal with if we
get much into swap has severe performance issues and is basically in
an outage.
I have 72core/1TB ram and have 30GB of swap (pre zram os) The
reality is if we are swapping then something/someone screwed up (too
many process, process leak, memory leak, machine sized wrong).
On Tue, Feb 28, 2023 at 2:48 PM Ranjan Maitra <mlmaitra(a)gmx.com> wrote:
>
> On Tue Feb28'23 01:56:08PM, Richard Shaw wrote:
> > From: Richard Shaw <hobbes1069(a)gmail.com>
> > Date: Tue, 28 Feb 2023 13:56:08 -0600
> > To: Community support for Fedora users <users(a)lists.fedoraproject.org>
> > Reply-To: Community support for Fedora users
<users(a)lists.fedoraproject.org>
> > Subject: Re: recommended partition for swap with 0.5 TB memory
> >
> > On Tue, Feb 28, 2023 at 1:43 PM Ranjan Maitra <mlmaitra(a)gmx.com> wrote:
> >
> > > Hi,
> > >
> > > I am trying to install Fedora on to a new machine that has 0.5 TB RAM.
> > > Hard drives are 256 GB for / and friends, and 2 TB for /home partition. In
> > > the past, it used to be suggested that swap be twice that of RAM: this
> > > later changed to the same amount, and now it is very unclear (to me)
> > > because I have not tracked the latest recommendations. Anyway, what would
> > > you suggest? The machine is a Dell Precision 7920 with 28 cores/56
threads.
> > >
> >
> > By 0.5TB you mean 512GB of ram? Assuming you're installing Fedora 36 or 37,
> > I would just leave the defaults alone, which utilizes swap on zram. So
> > basically it won't use any swap unless needed. You can adjust the amount of
> > memory allowed to be used for swap.
> >
>
>
> I decided to let the automatic installer pick up the partition. It correctly sets
aside 4 TiB (sorry, it was 4TiB, not 2TiB as mentioned earlier) for /home, and then 1 GiB
for /boot, 600 MiB for /boot/efi, 70 GiB for / and leaves aside the rest (as free space).
I can adjust the 70 GiB, but do I need to keep aside space for the zram? I am unsure about
what to do with so much free space?
>
> Many thanks and best wishes,
> Ranjan
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