On Tue, Sep 14, 2004 at 11:31:53AM -0700, Florin Andrei wrote:
On Mon, 2004-09-06 at 16:27, Andrew Morton wrote:
Con Kolivas <kernel@xxxxxxxxxxx> wrote:
The change was not deliberate but there have been some other people report significant changes in the swappiness behaviour as well (see archives). It has usually been of the increased swapping variety lately. It has been annoying enough to the bleeding edge desktop users for a swag of out-of-tree hacks to start appearing (like mine).
All of which is largely wasted effort.
From a highly-theoretical, ivory-tower perspective, maybe; i am not theone to pass judgement.From a realistic, "fix it 'cause it's performing worse than MSDOSwithout a disk cache" perspective, definitely not true.
I've found a situation where the vanilla kernel has a behaviour that
makes no sense:
http://marc.theaimsgroup.com/?l=linux-kernel&m=109237941331221&w=2
http://marc.theaimsgroup.com/?l=linux-kernel&m=109237959719868&w=2
http://marc.theaimsgroup.com/?l=linux-kernel&m=109238126314192&w=2
A patch by Con Kolivas fixed it:
http://marc.theaimsgroup.com/?l=linux-kernel&m=109410526607990&w=2
I cannot offer more details, i have no time for experiments, i just need
a system that works. The vanilla kernel does not.
Have you tried to decrease the value of /proc/sys/vm/swappiness to say 30 and see what you get?
Andrew's point is that we should identify the problem - Con's patch
rewrites swapping policy.