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Re: Adding a hardware swap partition

From Theo <theom+news@chiark.greenend.org.uk>
Newsgroups comp.sys.raspberry-pi
Subject Re: Adding a hardware swap partition
Date 2026-03-13 14:16 +0000
Organization University of Cambridge, England
Message-ID <cCF*oCqBA@news.chiark.greenend.org.uk> (permalink)
References (1 earlier) <10osnfc$1f65u$3@dont-email.me> <10oumjp$24gt0$1@dont-email.me> <10ov9et$2coog$3@dont-email.me> <10ovp46$2juq8$1@dont-email.me> <10p0rju$30rut$10@dont-email.me>

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The Natural Philosopher <tnp@invalid.invalid> wrote:
> I think that is an interesting summary, the point being made that speed 
> is dominated today by disk access times, not CPU cycles in addressing  a 
> file system.
> And with the demise of spinning rust, there is no seek delay either, so 
> the theoretical advantages of an actual partition in the disks low 
> sector area, no longer outweigh the operational simplicity of a swap file.
> 
> Like so many other things that grew out of limited RAM and slow spinning 
> rust disks, the swap partition is really no longer necessary...

One advantage of a swap partition is that it's a dedicated space - if you
start running low on space it may limit the size of swapfile that can be
created, which has a knock-on impact on performance.

Another reason is if you're using hibernate.  You need swap space at least
as large as RAM to save out your memory contents to, so that can prevent
hibernate working if you are running low on space.  Also hibernate/restore
is a fairly low-level process and swap partitions are easier to setup for
that than swap files.

Theo

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Thread

Adding a hardware swap partition bp@www.zefox.net - 2026-03-11 16:20 +0000
  Re: Adding a hardware swap partition The Natural Philosopher <tnp@invalid.invalid> - 2026-03-11 16:43 +0000
  Re: Adding a hardware swap partition Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-03-11 21:39 +0000
    Re: Adding a hardware swap partition bp@www.zefox.net - 2026-03-12 15:37 +0000
      Re: Adding a hardware swap partition Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-03-12 20:59 +0000
        Re: Adding a hardware swap partition bp@www.zefox.net - 2026-03-13 01:26 +0000
          Re: Adding a hardware swap partition The Natural Philosopher <tnp@invalid.invalid> - 2026-03-13 11:15 +0000
            Re: Adding a hardware swap partition Theo <theom+news@chiark.greenend.org.uk> - 2026-03-13 14:16 +0000
              Re: Adding a hardware swap partition The Natural Philosopher <tnp@invalid.invalid> - 2026-03-13 16:01 +0000
                Re: Adding a hardware swap partition Theo <theom+news@chiark.greenend.org.uk> - 2026-03-13 18:28 +0000
                Re: Adding a hardware swap partition The Natural Philosopher <tnp@invalid.invalid> - 2026-03-13 21:50 +0000
              Re: Adding a hardware swap partition druck <news@druck.org.uk> - 2026-03-13 21:26 +0000
          Re: Adding a hardware swap partition Kees Nuyt <kees@nospam.demon.invalid> - 2026-03-13 22:25 +0100
  Re: Adding a hardware swap partition Jim Jackson <jj@franjam.org.uk> - 2026-03-12 09:13 +0000
    Re: Adding a hardware swap partition Jim Jackson <jj@franjam.org.uk> - 2026-03-12 09:31 +0000
  Re: Adding a hardware swap partition Jim Jackson <jj@franjam.org.uk> - 2026-03-12 10:07 +0000
  Re: Adding a hardware swap partition Jim Diamond <zsd@jdvb.ca> - 2026-03-13 14:40 -0300
    Re: Adding a hardware swap partition druck <news@druck.org.uk> - 2026-03-15 13:25 +0000
      Re: Adding a hardware swap partition The Natural Philosopher <tnp@invalid.invalid> - 2026-03-15 14:02 +0000
        Re: Adding a hardware swap partition Josef Möllers <josef@invalid.invalid> - 2026-03-15 17:02 +0100
        Re: Adding a hardware swap partition Jim Diamond <zsd@jdvb.ca> - 2026-03-15 18:04 -0300
          Re: Adding a hardware swap partition Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-03-15 21:31 +0000
            Re: Adding a hardware swap partition Theo <theom+news@chiark.greenend.org.uk> - 2026-03-16 16:01 +0000
              Re: Adding a hardware swap partition Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-03-16 22:53 +0000
          Re: Adding a hardware swap partition bp@www.zefox.net - 2026-03-15 22:53 +0000
            Re: Adding a hardware swap partition Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-03-16 01:41 +0000
            Re: Adding a hardware swap partition Richard Kettlewell <invalid@invalid.invalid> - 2026-03-16 09:54 +0000
              Re: Adding a hardware swap partition Richard Harnden <richard.nospam@gmail.invalid> - 2026-03-16 11:49 +0000
                Re: Adding a hardware swap partition Richard Kettlewell <invalid@invalid.invalid> - 2026-03-16 12:18 +0000
            Re: Adding a hardware swap partition Jim Diamond <zsd@jdvb.ca> - 2026-03-17 18:30 -0300
              Re: Adding a hardware swap partition bp@www.zefox.net - 2026-03-19 01:36 +0000
                Re: Adding a hardware swap partition Richard Kettlewell <invalid@invalid.invalid> - 2026-03-19 08:52 +0000
                Re: Adding a hardware swap partition bp@www.zefox.net - 2026-03-19 14:49 +0000
                Re: Adding a hardware swap partition The Natural Philosopher <tnp@invalid.invalid> - 2026-03-19 19:23 +0000
                Re: Adding a hardware swap partition Richard Kettlewell <invalid@invalid.invalid> - 2026-03-19 22:01 +0000
                Re: Adding a hardware swap partition Richard Kettlewell <invalid@invalid.invalid> - 2026-03-19 22:00 +0000
                Re: Adding a hardware swap partition bp@www.zefox.net - 2026-03-20 03:50 +0000
                Re: Adding a hardware swap partition The Natural Philosopher <tnp@invalid.invalid> - 2026-03-20 07:02 +0000
                Re: Adding a hardware swap partition Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-03-19 22:56 +0000
                Re: Adding a hardware swap partition Anssi Saari <anssi.saari@usenet.mail.kapsi.fi> - 2026-03-25 14:53 +0200
                Re: Adding a hardware swap partition bp@www.zefox.net - 2026-03-25 18:53 +0000
          Re: Adding a hardware swap partition The Natural Philosopher <tnp@invalid.invalid> - 2026-03-16 12:38 +0000

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