Multi CPU support in 6.0

[Julian Elischer]

David Landgren wrote:

> And Kris Kennaway did write:
>
>> On Mon, Nov 07, 2005 at 05:15:55PM +0100, Achim Patzner wrote:
>>
>>> Am 07.11.2005 um 16:27 schrieb Ollivier Robert:
>>>
>
> [...]
>
>>> I remember someone writing that the intermediate state of -CURRENT  
>>> while removing the giant lock around the kernel wasn't viable with  
>>> more than four CPUs as it would completely deadlock from time to  
>>> time. I guess we're a bit further down the road...
>>
>>
>>
>> That certainly seems to be the case.  You want to use FreeBSD 6.0,
>> which has excellent performance and stability on SMP in my testing,
>> even with 14 CPUs.  FreeBSD 5.4 is definitely not up to it, since VFS
>> is under Giant.
>
>
> Well I'm going to take the plunge and bring an HP Netserver LT 6000 
> with 6 CPUs up from 5.4-STABLE to 6.


do some benchmarks before and after :-)

>
> Are there any obvious additions or subtractions from a 5.x kernel 
> configuration file? Is ADAPTIVE_GIANT now obsolete?
>
> Thanks for the tips,
> David
>
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