[WBEL-users] Virtual memory tuning?

[Christian Nygaard]

On Mon, 29 Nov 2004, James Knowles wrote:

> 
> > system only freezes for moments when its swapping  
> 
> Yeah. I hate that in the 2.4 kernel, even with the 2.6 backports. I've not
> seen this behaviour under a real 2.6 kernel.

Thanks haven't heard of that before, so news others are experiencing the 
same.
 
> The bad use of memory (per the bug) is a separate issue. The only workaround
> that I've been able to find is to use a tiny Perl program to chew up huge
> amounts of memory and release it. This forces everything to page. Then let the
> system restablize. But it's not a long-term solution either. The problem
> slowly re-apprears.
> 
> Just the behaviour I've seen.
> 

I tried tuning the disk cache size down a bit using vm.pagesize since I 
have a feeling the cache was to large. Ie it swapped out processes in 
order to free disk cache :), which I'm not so sure is a good behavior 
during heavy memload.

//Christian