Out of Memory - continued

[Ray Van Dolson]

On Wed, Jan 23, 2008 at 12:50:24PM +0000, Andrew.Bridgeman at corusgroup.com wrote:
> I have also just noticed that the following text comes up when i do a free
> -m. Does this mean i have no dedicated swap space on the hard disk with the
> OS on it. If this is the case can i add some dynamically with out messing
> up the operating system, as i have 2 gig free on the OS disk currently?
> 
>              total       used       free     shared    buffers     cached
> Mem:          2006         94       1912          0          7         43
> -/+ buffers/cache:         43       1963
> Swap:            0          0          0
> 
> Any advice would be great.
> 

Yeah, looks like you have no swap. :-)  Or at least nothing enabled.

Also, here are settings we use for 32-bit VMware servers which although
had plenty of RAM (24GB), were exhibiting OOM errors:

vm.min_free_kbytes = 16384
vm.overcommit_memory = 2
vm.overcommit_ratio = 75
vm.lower_zone_protection = 80
vm.swappiness = 60

Using these settings, our OOM problems have gone away.

Ray