virtual memory swap size

[Craig White]

> -----Original Message-----
> From: plug-discuss-admin@lists.plug.phoenix.az.us
> [mailto:plug-discuss-admin@lists.plug.phoenix.az.us]On Behalf Of David
> A. Sinck
> Sent: Monday, May 14, 2001 5:25 PM
> To: plug-discuss@lists.plug.phoenix.az.us
> Subject: virtual memory swap size
>
>
>
>
> \_ SMTP quoth Craig White on 5/14/2001 15:26 as having spake thusly:
> \_
> \_ Just looking to pick everyone's brain here.
> \_
> \_ If you have 128Mb RAM what would be the optimal size to make the swap
> \_ partition?  If you are running HTTP off this machine would it matter?
> \_
> \_ How about 512MB RAM or are there hard and fast rules?
> \_
> \_ I have seen suggestions from 1MB over the real amount of RAM
> to 2x the real
> \_ amount of RAM so I am unclear.
>
> My rule of thumb is
>
> (real mem + 10M/ xterminal) * server_fudge_factor
>
> And swapping isn't necessarily bad...so long as you're not doing it.
> :-)
>
----
I dunno - swapping has it's moments.

Is server fudge factor one of those hard and fast rules that I was asking
about? It's a technical term I am unfamiliar with ;-)

I am amazed at the diversity of opinion here. It would seem that 2X is safe
but not necessarily going to be the fastest setting. My interest is because
I am going to set up what is likely to be my first server that will actually
be serving a fair amount of web pages and it would seem that I have to make
allowances for this thing to keep running - even if it goes slow by way of
VM. It has 128M RAM but I think that it's necessary to upgrade it to 512K -
RAM's cheap anyway. I don't mind giving away 1 gigabyte of memory over to VM
if it's gonna help to keep this thing alive.

Craig