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From: Francois Tigeot <ftigeot at wolfpond.org>
Subject: Re: Machine unresponsive with cache_lock: blocked on... message
Date: Mon, 22 Mar 2010 09:39:07 +0100
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On Sun, Mar 21, 2010 at 12:14:11PM -0700, Matthew Dillon wrote:
> 
> :>     Try setting it to 40 (it defaults to 23).  The max value is 64
> :>     which will effectively put all non-memory-mapped file data on the
> :>     inactive queue, including any data which is repeatedly accessed.
> 
>     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.

So far, so good.

I have now decreased vm_cycle_point to 32.

-- 
Francois Tigeot