High load event idl.

[Alexander Motin]

On 04/29/12 16:30, Alex Kozlov wrote:
> On Sun, Apr 29, 2012 at 04:11:20PM +0300, Alexander Motin wrote:
>> On 04/29/12 15:27, Alex Kozlov wrote:
>>> On Sun, Apr 29, 2012 at 03:07:40PM +0300, Alexander Motin wrote:
>>>> On 04/29/12 15:04, Oliver Pinter wrote:
>>>>> Removing dummynet from kernel don't chanage anything, that is releated
>>>>> to load average. The loadavg hold to 0.70 +/- 0.2. (single user : sh +
>>>>> top)
>>>>
>>>> New ktr dump?
>>> I have similar issue on one of my laptops. Should I provide ktr dump?
>>> http://lists.freebsd.org/pipermail/freebsd-current/2011-September/027133.html
>> In your case HPET also shares interrupt with other devices. I suspect
>> that may be a reason. Every time when swi thread runs loadavg, other CPU
>> runs shared interrupt handler, that is accounted as result. Please show
>> your verbose dmesg.
> Attached.

In your case HPET could solely use IRQ22 that seems free now. After 
recent changes in ACPI code it is detected before PCI devices and so 
doesn't avoids sharing. You may try to hint it specific IRQ by adding to 
loader,conf line:
hint.hpet.0.allowed_irqs="0x00400000"

-- 
Alexander Motin