Re: vmscan.c heuristic adjustment for smaller systems

[Andrew Morton]

Marc Singer <elf@xxxxxxxxx> wrote:
>
>  I'd say that there is no statistically significant difference between
>  these sets of times.  However, after I've run the test program, I run
>  the command "ls -l /proc"
> 
>  				 swappiness
>  			60 (default)		0
>  			------------		--------
>  elapsed time(s)		18			1
>  			30			1
>  			33			1

How on earth can it take half a minute to list /proc?

>  This is the problem.  Once RAM fills with IO buffers, the kernel's
>  tendency to evict mapped pages ruins interactive performance.

Is everything here on NFS, or are local filesystemms involved?  (What does
"mount" say?)
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