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Date:      Wed, 17 Feb 1999 14:27:28 -0500 (EST)
From:      "John S. Dyson" <dyson@iquest.net>
To:        Tor.Egge@fast.no
Cc:        dillon@apollo.backplane.com, hackers@freebsd.org
Subject:   Re: Problems in VM structure ?
Message-ID:  <199902171927.OAA69946@y.dyson.net>
In-Reply-To: <199902171910.UAA17721@midten.fast.no> from "Tor.Egge@fast.no" at "Feb 17, 99 08:10:38 pm"

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Tor.Egge@fast.no said:
> 
> All zones with ZONE_INTERRUPT flag has preallocated KVA
> and a nonzero max. --> 78 MB.
> 
> SMP --> 4 MB per processor private kva
> last page dir entry reserved for alternate page table --> 4 MB
> Kernel text + data + bss --> 1.5 MB
> 
> 	78 MB + 4 MB + 4 MB + 1.5 MB + 170 MB --> 257.5 MB
> 
> When looking at current kernel_map on a 512 MB SMP machine with
> maxusers set to 256, VM_KMEM_SIZE and VM_KMEM_SIZE_MAX set to
> 128 MB and NMBCLUSTERS set to 12288:
> 
> 	(kgdb) print kernel_map->size
> 	$1 = 334737408
> 
That is dangerously low.

-- 
John                  | Never try to teach a pig to sing,
dyson@iquest.net      | it makes one look stupid
jdyson@nc.com         | and it irritates the pig.


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