[NBLUG/talk] My new debin server

Dean A. Roman droman at romansystems.com
Thu Jun 1 17:59:23 PDT 2006

Tim C. Lewis wrote:

> On Thu, 1 Jun 2006, Chris Palmer wrote:
>> Dean A. Roman writes:
>>> There is nothing that says you absolutely need a swap partition.  You
>>> could eliminate your entire swap partition altogether effectively
>>> removing the possibility of swapping.
>> Thus turning an excessive swapping problem into a problem of applicatons
>> randomly dying because they don't have enough memory.

If your not using a swap space, and you have applications requesting 
more memory than is available(and dying), then you would have a swapping 
problem when you turn on swapping not a cache/swap ratio problem.
Reportedly Andrew Morton set's his desktop to swappiness 100 ??
What's your swappiness setting?

> ah, there is a middleground:
> /proc/sys/vm/swappiness
> echo (or sysctl) a low value (range is 0-100, default is 60) to that 
> and the kernel will less actively use the swap that's available unless 
> it needs to.  this may or may not be the "right thing to do" depending 
> on what kind of use the system in question is getting, and what kind 
> of responsiveness you're looking for.  google search for "swappiness" 
> for more detailed info...
> -tcl.
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