[Gllug] performance difference between a swap partition vs a swap file.>>>>>

Steve Kemp steve at steve.org.uk
Wed Dec 2 10:50:50 UTC 2009

On Wed Dec 02, 2009 at 10:40:11 +0000, Alain Williams wrote:

> >   At Bytemark all our machines have been installed and configured
> >  with file-based swap for at least the past year.
> What file system type do these swap files live in ?

  Generally speaking we're using ext3.

> Swap is good for things like 'getty' that are started and hardly ever used.
> It is also good for when something goes wrong and starts eating RAM,
> gives your system a chance to live until you sort things out.

  Agreed.  It's nice to have a small amount for minor thrashing, but
 if you're in a situation when you're regularly seeing swap running
 then your machine is overloaded or poorly tuned.

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