Mailinglist Archive: opensuse (2700 mails)

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Re: [SLE] swap space question in 9.3 install
  • From: Ken Schneider <suse-list@xxxxxxxxxxxxx>
  • Date: Thu, 28 Jul 2005 08:28:05 -0400
  • Message-id: <1122553685.15457.6.camel@xxxxxxxxxxxxxxxxx>
On Thu, 2005-07-28 at 03:47 +0200, Carlos E. R. wrote:
> Hash: SHA1
> The Monday 2005-07-25 at 15:01 -0400, Jerry Feldman wrote:
> > Actually, in Windows95 and forward swap was somewhat automatic. In Windows,
> > SWAP was (and is) a file in the file system.
> That's the same as it was in Win 3.1. It was a file, it could be fixed or
> automatic. Same thing :-)
> > I'm pretty sure the 2x (or 3x)
> > rule of thumb is of Unix origin since we've been allocating swaps on Unix
> > for quite a while before Windows knew what virtual memory was.
> Yes, of course, I only said that the 2X rule was a windows thing, not that
> wirtual memory was a windows thing. It was not possible to allocate more:
> if you did, it warned you that it would not use it.

I was first exposed to unix (SUN OS) in 1987 and (as far as I can
remember) I was told that swap was generally 2X the amount of memory.
SUN OS was clearly around before windows was. Windows 1.0 was released
in 1985.

> > At one time,
> > the Linux swap was limited to something like 768M, and you could not
> > allocate more, but that was fixed long before the 2.2 kernel.
> Right. And no so long ago, there was a limit per swap partition or file, I
> think it was 128 Mb. But you could allocate dozens of those spaces.

Ken Schneider
UNIX since 1989, linux since 1994, SuSE since 1998

"The day Microsoft makes something that doesn't suck is probably
the day they start making vacuum cleaners." -Ernst Jan Plugge

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