From owner-freebsd-current  Thu Jan 21 13:57:32 1999
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To: Geoff Buckingham <geoffb@demon.net>
cc: freebsd-current@FreeBSD.ORG
Subject: Re: KVA/KVM shortages 
In-reply-to: Your message of "Thu, 21 Jan 1999 18:09:41 GMT."
             <19990121180941.G19395@gti.noc.demon.net> 
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Date: Thu, 21 Jan 1999 13:53:44 -0800
From: Mike Smith <mike@smith.net.au>
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> On tuesday I crashed a machine after it ran out of kvm. (dual PII 400 with
> 768MB RAM)  poking about in the code adding:
> 
> options		"VM_KMEM_SIZE=(24*1024*1024)"
> options		"VM_KMEM_SIZE_MAX=(128*1024*1024)"
> 
> seems like a good way foward. Is it?

>From what I can see, you shouldn't need to set VM_KMEM_SIZE_MAX unless 
you're also setting VM_KMEM_SIZE_SCALE.

I just committed a tweak that allows you to say:

	set kern.vm.kmem.size=<value>

at the loader prompt or in /boot/loader.rc to override the default 
VM_KMEM_SIZE value.

If anyone has any more of these tunables that can easily be enhanced 
like this, please let me know.


-- 
\\  Sometimes you're ahead,       \\  Mike Smith
\\  sometimes you're behind.      \\  mike@smith.net.au
\\  The race is long, and in the  \\  msmith@freebsd.org
\\  end it's only with yourself.  \\  msmith@cdrom.com



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