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From: Francois Tigeot <ftigeot@wolfpond.org>
Subject: Re: Machine unresponsive with cache_lock: blocked on... message
Date: Mon, 22 Mar 2010 19:17:45 +0100
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On Mon, Mar 22, 2010 at 12:02:25PM +0100, Francois Tigeot wrote:
> On Mon, Mar 22, 2010 at 09:39:07AM +0100, Francois Tigeot wrote:
> > On Sun, Mar 21, 2010 at 12:14:11PM -0700, Matthew Dillon wrote:
> > > 
> > >     I'd like to know if this solves your particular problem (the paging
> > >     issue, not the crashing issue), and if so I will change the default
> > >     cycle point for the release.  So play with it.
> > 
> > With vfs.vm_cycle_point = 40 my server was much more responsive this morning.
> > Almost no programs had to be paged in when first accessed.
> > 
> > I have now decreased vm_cycle_point to 32.
> 
> With 32 the situation is slightly worse: some processes are once again paged
> out when not constantly accessed.
> 
> I'm currently testing with vfs.vm_cycle_point = 36.

36 is slightly better but one of the running applications was still massively
paged out after a few hours.

I vote for setting vfs.vm_cycle_point to 40.

-- 
Francois Tigeot