LKML Archive on lore.kernel.org
 help / color / Atom feed
From: Geert Uytterhoeven <geert@linux-m68k.org>
To: David Laight <David.Laight@aculab.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: A note on the 5.12-rc1 tag
Date: Thu, 4 Mar 2021 19:58:11 +0100
Message-ID: <CAMuHMdXv8P-wiNVRv6VLX2OFuy5AxgP3Gk49eLFBGGaQLf46bg@mail.gmail.com> (raw)
In-Reply-To: <79c3603cb086435b87030227d3d39443@AcuMS.aculab.com>

Hi David,

On Thu, Mar 4, 2021 at 5:56 PM David Laight <David.Laight@aculab.com> wrote:
> > On Thu, Mar 4, 2021 at 1:59 PM Linus Torvalds
> > <torvalds@linux-foundation.org> wrote:
> > > And, as far as I know, all the normal distributions set things up with
> > > swap partitions, not files, because honestly, swapfiles tend to be
> > > slower and have various other complexity issues.
> >
> > Looks like this has changed in at least Ubuntu: my desktop machine,
> > which got Ubuntu 18.04LTS during initial installation, is using a (small)
> > swapfile instead of a swap partition.
>
> My older ubuntu (13.04) didn't have swap at all.

IIRC, the small swapfile was the default suggestion. I don't really
need swap (yummy, 53 GiB in buff/cache ;-)

> I had to add some when running multiple copies of the Altera
> fpga software started causing grief.
> That will be a file.

Or switch FPGA, and use yosys ;-)

> After all once you start swapping it is all horrid and slow.
> Swap to file may be slower, but apart from dumping out inactive
> pages you really don't want to be doing it - so it doesn't matter.
>
> Historically swap was a partition and larger than physical memory.
> This allows simple 'dump to swap' on panic (for many disk types).
> But I've not seen that support in linux.

I know.  We started with lots of small partitions, but nowadays the
distros wan't to install everything in a single[*] partition, even swap.

[*] Ignoring /boot/efi, which didn't exist in the good ol' days.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

  reply index

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-03 20:53 Linus Torvalds
2021-03-04 12:43 ` Pavel Machek
2021-03-04 13:23   ` Krzysztof Kozlowski
2021-03-04 17:57   ` Linus Torvalds
2021-03-06 12:54     ` Ingo Molnar
2021-03-04 15:00 ` Geert Uytterhoeven
2021-03-04 16:56   ` David Laight
2021-03-04 18:58     ` Geert Uytterhoeven [this message]
2021-03-05  9:14       ` David Laight
2021-03-04 20:51 ` Josh Triplett
2021-03-05  5:39   ` Christian Couder
2021-03-05 18:10     ` Junio C Hamano
2021-03-05 23:06       ` Josh Triplett
2021-03-05 23:38         ` Junio C Hamano

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CAMuHMdXv8P-wiNVRv6VLX2OFuy5AxgP3Gk49eLFBGGaQLf46bg@mail.gmail.com \
    --to=geert@linux-m68k.org \
    --cc=David.Laight@aculab.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=torvalds@linux-foundation.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

LKML Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/lkml/0 lkml/git/0.git
	git clone --mirror https://lore.kernel.org/lkml/1 lkml/git/1.git
	git clone --mirror https://lore.kernel.org/lkml/2 lkml/git/2.git
	git clone --mirror https://lore.kernel.org/lkml/3 lkml/git/3.git
	git clone --mirror https://lore.kernel.org/lkml/4 lkml/git/4.git
	git clone --mirror https://lore.kernel.org/lkml/5 lkml/git/5.git
	git clone --mirror https://lore.kernel.org/lkml/6 lkml/git/6.git
	git clone --mirror https://lore.kernel.org/lkml/7 lkml/git/7.git
	git clone --mirror https://lore.kernel.org/lkml/8 lkml/git/8.git
	git clone --mirror https://lore.kernel.org/lkml/9 lkml/git/9.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 lkml lkml/ https://lore.kernel.org/lkml \
		linux-kernel@vger.kernel.org
	public-inbox-index lkml

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git