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Date:      Fri, 17 Sep 2010 18:32:44 +0300
From:      Andriy Gapon <avg@freebsd.org>
To:        John Baldwin <jhb@freebsd.org>
Cc:        alc@freebsd.org, Alan Cox <alc@cs.rice.edu>, freebsd-arch@freebsd.org
Subject:   Re: amd64: change VM_KMEM_SIZE_SCALE to 1?
Message-ID:  <4C938A1C.40307@freebsd.org>
In-Reply-To: <201009170900.41476.jhb@freebsd.org>
References:  <4C4DB2B8.9080404@freebsd.org> <201007301614.40768.jhb@freebsd.org> <4C931878.803@freebsd.org> <201009170900.41476.jhb@freebsd.org>

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on 17/09/2010 16:00 John Baldwin said the following:
> On Friday, September 17, 2010 3:27:52 am Andriy Gapon wrote:
>> on 30/07/2010 23:14 John Baldwin said the following:
>>> I think this is much better.  My strawman was rather hackish in that it was
>>> layering a hack on top of the existing calculations.  I prefer your approach.
>>> I do not think penalizing amd64 machines with less than 1.5GB is a big worry
>>> as most x86 machines with a small amount of memory are probably running as
>>> i386 anyway.  Given that, I would probably lean towards 1/8 instead of 1/7,
>>> but I would be happy with either one.
>>
>> Alan, John,
>>
>> are you planning to commit the vnodes limit patch or a version of it?
> 
> I thought Alan had committed it already?

Oops, missed this one.  Thanks a lot!

> Author: alc
> Date: Mon Aug  2 21:33:36 2010
> New Revision: 210782
> URL: http://svn.freebsd.org/changeset/base/210782
> 
> Log:
>   Update the "desiredvnodes" calculation.  In particular, make the part of
>   the calculation that is based on the kernel's heap size more conservative.
>   Hopefully, this will eliminate the need for MAXVNODES_MAX, but for the
>   time being set MAXVNODES_MAX to a large value.
>   
>   Reviewed by:  jhb@
>   MFC after:    6 weeks
> 
> Looks like its MFC timer has likely triggered even.
> 


-- 
Andriy Gapon



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