[ale] Anyone know if this is true?

[Rich Faulkner]

For me depends upon the system as to swap size, but if I plan on using
hibernation features I have swap just over the size of RAM as in 1-1/2
times as the general (old) rule that I've followed...generally a couple
of gigs for a desktop and I leave it at that.  Being as I'm only
building desktops and laptops lately I'm not speaking to servers.  An
interesting experiment is to do test installs to various system configs
and see what a given distro will do for a default installation.  I
consider this a benchmark from the developers on an "ideal"
configuration given the hardware provided.    RinL


On Thu, 2011-10-13 at 08:45 -0400, Scott Castaline wrote:

> On 10/12/2011 09:40 PM, Tavarvess Ware wrote:
> >
> > Scott I read the ram x 2= swap in my Linux classes as well and have 
> > generally followed that, but with memory soaring as it has lately i am 
> > starting to rethink that.  A system 48gigs of memory would be 96 in 
> > swap..... I wonder if te old format has changed and I haven't heard yet.
> >
> I only go RAM x 2 = swap for the 1st 2 GB of RAM so 2GB RAM = 4GB swap. 
>  From there on it's RAM x 1 = swap so 4GB RAM = 6GB swap. So your 48 GB 
> of RAM = 50GB swap, and yup that's one hell of a lot of swap space.
> >
> > On Oct 12, 2011 9:32 PM, "Scott Castaline" <skotchman at gmail.com 
> > <mailto:skotchman at gmail.com>> wrote:
> >
> >     On 10/12/2011 04:14 PM, planas wrote:
> >     > On Wed, 2011-10-12 at 15:13 -0400, Geoffrey Myers wrote:
> >     >> 'Just so you all know, when determining how much space to assign to
> >     >> swap: Swap isn't just used for paging or virtual memory
> >     management; swap
> >     >> is also used by power management for suspend-to-disk
> >     (hibernation). '
> >     >>
> >     >> I seriously don't know, so I'm asking.
> >     >>
> >     >
> >     > I have seen that a good swap size is ~1.5x the RAM.
> >     > --
> >     > Jay Lozier
> >     > jslozier at gmail.com <mailto:jslozier at gmail.com>
> >     >
> >     >
> >     >
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> >     I remember from somewhere that upto 2GB use 2.0x RAM above 2GB of
> >     RAM go
> >     with 1:1 ratio so 4Gb RAM = 6GB swap. I don't remember why 2x on the
> >     first 2GB and this goes back to when 4GB was a lot on pre-configured
> >     retail boxes. So like Geoffrey I can't see having 18GB of swap for a
> >     16GB machine.
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