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Date:      Thu, 6 May 2004 17:40:03 +0200
From:      Stefan Bethke <stb@lassitu.de>
To:        current@FreeBSD.org
Cc:        Ruslan Ermilov <ru@FreeBSD.org>
Subject:   Re: Tuning KVA_PAGES / kmem?
Message-ID:  <A46A2DAC-9F73-11D8-A0EE-000A95C893E4@lassitu.de>
In-Reply-To: <20040420182233.GC66808@ip.net.ua>
References:  <F2014C7A-92BB-11D8-BB31-000393496BE8@lassitu.de> <20040420134021.GD64842@ip.net.ua> <D8214638-92DD-11D8-BB31-000393496BE8@lassitu.de> <20040420182233.GC66808@ip.net.ua>

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Am 20.04.2004 um 20:22 schrieb Ruslan Ermilov:

> Well, take the amount of your virtual memory (physical + swap),
> and decide how much of it you'd like to allocate for kernel.
> It's really hard to say what how much memory you need in your
> kernel, this is highly dependent on your specific requirements.
> If you do a lot of malloc()'s in the kernel, for example...

Kris Kennaway was kind enought to give an example that works for him, 
in a similiar thread on -hackers:
> I'm pretty sure it's just a matter of the right tuning.  All I needed
> to do was to add this on my heavily loaded 4GB machine:
>
> options         VM_KMEM_SIZE_MAX=419430400      #400MB

With that option, I can do multiple cvs up's and ports builds 
simultaneously without problems.


Stefan

-- 
Stefan Bethke <stb@lassitu.de>   Fon +49 170 346 0140



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