[prev in list] [next in list] [prev in thread] [next in thread] 

List:       freebsd-smp
Subject:    Re: Multi CPU support in 6.0
From:       David Landgren <david () landgren ! net>
Date:       2005-11-08 22:20:53
Message-ID: 437124C5.7050008 () landgren ! net
[Download RAW message or body]

And Julian Elischer did write:

> 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 :-)

Ah... wise words. I'll try a couple of things out then.

Thanks,
David


_______________________________________________
freebsd-smp@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-smp
To unsubscribe, send any mail to "freebsd-smp-unsubscribe@freebsd.org"
[prev in list] [next in list] [prev in thread] [next in thread]