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Date:      Thu, 20 Sep 2007 10:37:58 +0200
From:      Kris Kennaway <kris@FreeBSD.org>
To:        Borja Marcos <BORJAMAR@SARENET.ES>
Cc:        freebsd-current@freebsd.org, Ivan Voras <ivoras@freebsd.org>
Subject:   Re: Memory allocation problems (ZFS/NFS/amd64)
Message-ID:  <46F23166.8070908@FreeBSD.org>
In-Reply-To: <613318C3-6B66-4758-A0D4-97405D6A1914@SARENET.ES>
References:  <5870F83F-7174-47AA-98AE-C1DE8972E0C8@SARENET.ES>	<fcrmmp$2ug$1@sea.gmane.org> <613318C3-6B66-4758-A0D4-97405D6A1914@SARENET.ES>

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Borja Marcos wrote:
> 
> On 19 Sep 2007, at 19:35, Ivan Voras wrote:
> 
>> Borja Marcos wrote:
>>
>>> These are not innocuous messages, the machine is rejecting connections
>>> like crazy. Any ideas?
>>> The number of established TCP connections was around 490, and the
>>> machine has 2 GB of RAM.
>>
>> Just a guess: what is your vm.kmem_size_max and have you tried
>> increasing it?
> 
> It's the first thing I thought, and I cranked it to a very high value 
> just in case:
> 
> vm.kmem_size_max: 1073741824

You actually wanted to tune vm.kmem_size too or it may not actually 
change the value used (_max is just a ceiling for autotuning).  However 
if this is i386 you can't set it that high without also adjusting 
KVA_PAGES too (which has other effects).

Kris




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