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SubjectRE: Swap vs No Swap.
Date
Hum think I'm going to test this idea out tonight, quick question without
swap at what point would the kernel stop giving memory up for cache
purposes. For example I noticed on Tuesday whist doing a back up of a file
system (in-line tar cd untar) I was left with ~4 Mb left having nearly the
rest of my 2Gb Ram used for cache.

Would this ram be given back to the free pool much more readily?


> -----Original Message-----
> From: war [mailto:war@starband.net]
> Sent: 22 November 2001 16:01
> To: Oliver Neukum; linux-kernel@vger.kernel.org
> Subject: Re: Swap vs No Swap.
>
>
> Once again, I have enough ram where I am not going to run out
> for the things I
> do.
> I never need swap.
>
> When the system swaps, it slows down the system
> responsiveness big time.
>
>
> Oliver Neukum wrote:
>
> > Am Donnerstag 22 November 2001 02:53 schrieb war:
> > > I do not understand something.
> > >
> > > How can having swap speed ANYTHING up?
> > >
> > > RAM = 1000MB/s.
> > > DISK = 10MB/s
> > >
> > > Ram is generally 1000x faster than a hard disk.
> > >
> > > No swap = fastest possible solution.
> >
> > At some point you will run out of ram. Then you have to
> start paging. The
> > only question there is whether you page only mmaped files
> including program
> > code or whether you also write out program data.
> >
> > HTH
> > Oliver
>
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