Re: vmscan.c heuristic adjustment for smaller systems

Andrew Morton
2004-04-17T23:21:48Z

Marc Singer <elf@buici.com> 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?)