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Date:      Fri, 07 Nov 2003 13:28:31 -0800
From:      Lars Eggert <larse@ISI.EDU>
To:        John Baldwin <jhb@FreeBSD.org>
Cc:        current@freebsd.org
Subject:   Re: New interrupt code slows hyperthreading down
Message-ID:  <3FAC0E7F.9040607@isi.edu>
In-Reply-To: <XFMail.20031107161731.jhb@FreeBSD.org>
References:  <XFMail.20031107161731.jhb@FreeBSD.org>

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John Baldwin wrote:
> On 07-Nov-2003 Lars Eggert wrote:
> 
>>Jens Rehsack wrote:
>>
>>>interrupt                          total       rate
>>>irq1: atkbd0                         512          2
>>>irq8: rtc                          23419        127
>>>irq13: npx0                            1          0
>>>irq14: ata0                         4422         24
>>>irq15: ata1                           82          0
>>>irq16: uhci0 uhci3               5379815      29238
>>
>>This looks similar to what I described in the "fwohci0 running wild" 
>>thread. In both cases, irq16 seems to cause the problem...
> 
> Really.  Does this only happen with ACPI enabled?

Don't know about "only", since I have never booted this machine without 
ACPI. I'll test next time I'm rebooting.

Lars
-- 
Lars Eggert <larse@isi.edu>           USC Information Sciences Institute

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