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Re: Out of Memory - continued

It looks like for some reason the swap space was not loading on boot, i
have now fix that but still get the "Out of Memory killed process". So i
think i need to look more into the Overcommit_memory settings and
Overcomitt_ratio. I have 2 gig of memory and 2 gig of swap, could any who
knows what would be a ideal setting for me to try i.e should i use
Overcommit_memory 1 or 2 and also what the ratio should be with the set-up
i have here. I have already tried the setting Overcomiit_memory=1 with
ratio 50 but it did not stop the errors. I have been trying to get this to
work for over a week now so any suggestions on the settings would be great.


Andrew Bridgeman
||   Ray Van Dolson            |                                          |
||   <rvandolson esri com>     |                                          |
||   Sent by:                  |   To:        redhat-list redhat com      |
||   redhat-list-bounces redhat|           cc:                            |
||   .com                      |           Subject:        Re: Out of     |
||                             |   Memory - continued                     |
||   23/01/2008 16:15          |                                          |
||   Please respond to General |                                          |
||   Red Hat Linux discussion  |                                          |
||   list                      |                                          |
||                             |                                          |

On Wed, Jan 23, 2008 at 12:50:24PM +0000, Andrew Bridgeman corusgroup com
> I have also just noticed that the following text comes up when i do a
> -m. Does this mean i have no dedicated swap space on the hard disk with
> 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.


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