Re: [cobalt-developers] Server Load / Memory

[Janusz Grabowski <jjan@xxxxxxxxxx>]

On 08 Apr 2001 13:15:01 -0400, Jason D. Piercy wrote:
> 
> I have a RAQ4R that has all the current Security/System updates on it. I has
> however rebooted 4 times in the last week, after going into the logs I have
> no indication as to why.
> 
> Friday evening I swaped out the memory hoping that this could be the cause -
> but yet again this morning it has rebooted.
> 
> When I run top my stats are as follows:
> 
> load: 0.30, 0.29 0.39
> 154 proceses, 153 sleepng, 1 running (top)
> cpu: 3.4 % user, 5.7% system, 0% nice, 90.9% idle
> memory: 517368K av, 513953K used, 13096K free, 680.900 shrd, 28156K buff
> swap: 131448K av, 0K used, 131448K free,                              387740K cached
> 
> The couple of questions I have is:
> 
> A) has anyone experienced random rebooting? and solved the problem?
> 
> b) why and where is the memory going - i.e. 90-95% of memory used when
> system is idle?
> 
> 
> Any help on this front would be appreciated.
> 
> 
> 
> 
> Jason D. Piercy
> Founder & CEO
> BinaryBlocks Inc.
> 



The problem is that your system have 0.5 GB of memory and only about
130MB of swap.
And when swap ends the kernel couse panic and system reboots. 
All cobalt servers have too small swap partition. Simplest way to fix
it, is to add another disk and
make on it second swap partition with about 200% of your RAM.

It is normal to consume 90-95% of memory, becouse system is cacheing
access to block devices like hard disk
to maximize performance of your system. 
And when you run slocate its "walks" throught all filesystems and every
directories and files so disk bufors doesn't 
help system (Hit ratio under 50% ) and system decided to rebuild bufors
from a screch, and thats way some of your
memory is freed.


PS. Sorry for my poor english.


--
Janusz Grabowski
tp.internet