Re: [kvm-devel] Ubuntu Gutsy host / XP guest / -smp 2

[David A. <da...@bo...>]

on Wed Apr 02 2008, Avi Kivity <avi-AT-qumranet.com> wrote:

> David Abrahams wrote:
>> With the title combination, the guest takes nearly 100% of my real CPU
>> time and still only sees one CPU.  Is this a known problem, and does it
>> have a known solution?
>>
>>   
>
> Can you send the output of 'kvm_stat -1'?  

$ ./kvm_stat -1
exits                    5919444     74219
halt_exits               1746937     59420
invlpg                         0         0
io_exits                 2181506      6569
irq_exits                  23055       335
irq_window                  2839        77
mmio_exits                200851         0
pf_fixed                 1160592      6251
pf_guest                   43473       396
request_irq                    0         0
signal_exits               24838       281
tlb_flush                  37381      1132


> Also, what does the guest
> think it is doing (in task manager, etc.)?

"System Idle Process"

Note that right now, with my laptop running on battery, kvm is taking up
"only" about 50% of the real CPU.

> What HAL do you see in device manager?

Jim Paris wrote:
> He's referring to the Windows computer type -- the entry under
> "computer" in device manager.  See
>   http://kvm.qumranet.com/kvmwiki/Windows_ACPI_Workaround

"Standard PC"

For what it's worth, kvm was not started with "-smp 2" when XP was
installed; I only discovered that option later.

Thanks,

-- 
Dave Abrahams
Boost Consulting
http://boost-consulting.com