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From: Markus Trippelsdorf <Markus@trippelsdorf.de>
Date: Thu, 24 Nov 2005 13:29:35 +0000 (UTC)
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Subject: Re: so much clock interrupts?!
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On 2005-11-24, Wojciech Puchar <wojtek@tensor.3miasto.net> wrote:
>>>
>>> on FreeBSD 5.3 live CD i have 100 not 2000 times per second
>>>
>>> isn't it too much?!
>>
>> Yes it is.
>> That's why I have kern.hz="100" in my /boot/loader.conf .
>> --
>
> do you know why they set it too high in 6.0? there must be a reason!

Check:
http://groups.google.com/group/lucky.freebsd.cvs.all/browse_frm/thread/98c80113071ff35d/c37992b8ceab7de8?tvc=1&q=cvs+commit%3A+src%2Fsys%2Famd64%2Famd64+cpu_switch.S+machdep.c#c37992b8ceab7de8

for a in-depth discussion. 
-- 
Markus