[svlug] swap space size

[Jeff Shippen]

Original Poster: what is your conclusion? have we answered your question?
What did you decide to do?

On Jan 2, 2008 6:01 PM, bruce coston <jane_ikari at yahoo.com> wrote:

> Nice article on swap, seems to support my "# of g of ram +999 megabytes"
> rule. Giving more swap when you have little ram and relatively less for more
> ram. Eventually you wind up with less swap following this rule when ram gets
> huge. The big choice is whether you should use current ram or max ram of
> motherboard as your guide. I'm sticking with 3g despite the fact that my
> 6100sm-m should handle 2 sticks of 8g when 8g sticks come out.
>
> **
>
> ...Christian Einfeldt,
> Producer, The Digital Tipping Point From: Don Marti <dmarti at zgp.org>
> Subject: Re: [svlug] recommended percentage swap on 400G drive
> Date: Mon, 31 Dec 2007 22:25:11 -0800
> To: svlug at lists.svlug.org
>
> begin Rick Moen quotation of Thu, Dec 27, 2007 at 09:16:21PM -0800:
>
> > As if all this detail wasn't enough to contend with, it turns out that
> > Linux swap _files_ (as opposed to partitions) are a contender again.
> > They were common in very early Linux days, but fell out of favour when
> > it emerged that swap partitions yielded much better performance.
> > However, it turns out that, with the 2.6.x kernel series, swap files
> > once again have competitive performance, and might be worth using. See:
> > http://lkml.org/lkml/2006/5/29/3
>
> FHS doesn't seem to list a recommended location for
> swap files. Somewhere in /var?
>
> Good explanation of swap from Martin Pool here:
> http://sourcefrog.net/weblog/software/linux-kernel/swap.html
>
> --
> Don Marti
> http://zgp.org/~dmarti/ <http://zgp.org/%7Edmarti/>
> dmarti at zgp.org
>
>
> From: Rick Moen <rick at linuxmafia.com>
> Subject: Re: [svlug] recommended percentage swap on 400G drive
> Date: Wed, 2 Jan 2008 02:47:42 -0800
> To: svlug at lists.svlug.org
>
> Quoting Don Marti (dmarti at zgp.org):
>
> > FHS doesn't seem to list a recommended location for
> > swap files. Somewhere in /var?
>
> I think you could make a plausible argument for /var/lib/misc or
> /var/run . (The latter is mostly PID files, but the description of
> "system information data describing the system since it was booted" that
> "must be cleared (removed or truncated as appropriate) at the beginning
> of the boot process" matches what swapfiles are.)
>
> --
> Cheers, Dogs may have kept us company on the hunt, but it was
> Rick Moen the cats who insisted we invent houses and discover fire.
> rick at linuxmafia.com -- Khiem Tran
>
>
> From: Daniel Gimpelevich <daniel at gimpelevich.san-francisco.ca.us>
> Subject: Re: [svlug] recommended percentage swap on 400G drive
> Date: Wed, 02 Jan 2008 08:06:05 -0800
> To: svlug at lists.svlug.org
>
> On Wed, 02 Jan 2008 02:47:42 -0800, Rick Moen wrote:
>
> > Quoting Don Marti (dmarti at zgp.org):
> >
> >> FHS doesn't seem to list a recommended location for
> >> swap files. Somewhere in /var?
> >
> > I think you could make a plausible argument for /var/lib/misc or
> > /var/run . (The latter is mostly PID files, but the description of
> > "system information data describing the system since it was booted" that
> > "must be cleared (removed or truncated as appropriate) at the beginning
> > of the boot process" matches what swapfiles are.)
>
> On OS X:
> :r!ls -lh /var/vm
>
> total 4.0G
> drwx--x--x 12 root wheel 408 Oct 24 14:47 app_profile
> -rw------T 1 root wheel 64M Oct 24 14:47 swapfile0
> -rw------T 1 root wheel 64M Oct 24 14:55...
>
>
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