Re: Re[2]: problems with mbuff in rtlinux-2.3

["Terry L. Ridder" <terrylr-at-blauedonau.com>]

hello;

one way would be to have a terminal window open
and running 'top'.

<begin top example>
  5:42pm  up 16 days,  7:55,  9 users,  load average: 0.01, 0.01, 0.00
55 processes: 54 sleeping, 1 running, 0 zombie, 0 stopped
CPU states:  0.0% user,  2.5% system,  1.1% nice, 96.3% idle
Mem:    62316K av,   56372K used,    5944K free,   17436K shrd,    2660K buff
Swap:  235576K av,   34312K used,  201264K free                   21832K cached
<end   top example>

check the 'Swap:' line.
if the third number, free swap, is getting close to 0 (zero)
the machine is thrashing. as the third number heads toward
zero the second/middle number is heading to match the first
number. the more a machine needs to swap the slower it will
become.

On Tue, 17 Oct 2000, Ray wrote:

On Tue, 17 Oct 2000, Terry wrote:
terrylr> hello ray;
terrylr> 
terrylr> how much real memory do these machines have?
terrylr> how many swap partitions?

ray> 
ray> One swap 64 meg.  
ray> 

terrylr> the system may be thrashing on memory swapping.

ray> 
ray> How would I test for this?
ray> 
ray> Ray
ray> 

-- 
Terry L. Ridder
Blue Danube Software (Blaue Donau Software)
"We do not write software, we compose it."

digging deep, i feel my conscience burn
i need to know who and what i am
this hunger jolts me from complacency
rocks me, makes me meet myself
----kendall payne---closer to myself---