From: Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
To: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Cc: David Abrahams
<dave-UB3wUj7V41K5azolltMz9laTQe2KTcn/@public.gmane.org>,
kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: kvm somehow exempt from frequency scaling?
Date: Wed, 11 Apr 2007 22:41:09 -0500 [thread overview]
Message-ID: <461DAA55.4080805@codemonkey.ws> (raw)
In-Reply-To: <461DA903.50902-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Avi Kivity wrote:
> David Abrahams wrote:
>
>> on Wed Apr 11 2007, David Abrahams <dave-UB3wUj7V41K5azolltMz9laTQe2KTcn/-AT-public.gmane.org> wrote:
>>
>>
>>
>>>> Does qemu behave differently if you use -no-kvm?
>>>>
>>>>
>>> Haven't tried that one yet.
>>>
>>>
>> Newsflash: yes, it does. The VM keeps using cycles at a normal rate
>> even when not on a visible workspace. This problem appears to be
>> KVM-specific.
>>
>>
>
> Amazing.
>
> Can you strace a hung vm and post the log?
>
I've heard of this occurring without KVM (although I don't recall if
kqemu was involved). I've never been able to reproduce myself.
An strace or core dump (via kill -SEGV) would be terribly useful in
seeing what's going on.
Regards,
Anthony Liguori
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next prev parent reply other threads:[~2007-04-12 3:41 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-09 0:45 kvm somehow exempt from frequency scaling? David Abrahams
[not found] ` <87veg6bck6.fsf-2bi8v6C3s58ZC2cDDG0gXw@public.gmane.org>
2007-04-09 7:28 ` Avi Kivity
[not found] ` <4619EB19.20305-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-04-10 4:24 ` David Abrahams
[not found] ` <87mz1gj1pr.fsf-2bi8v6C3s58ZC2cDDG0gXw@public.gmane.org>
2007-04-10 7:28 ` Avi Kivity
[not found] ` <461B3CBB.3040401-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-04-10 10:16 ` Michael Riepe
2007-04-11 10:24 ` David Abrahams
2007-04-11 16:37 ` David Abrahams
[not found] ` <87fy76c1el.fsf-2bi8v6C3s58ZC2cDDG0gXw@public.gmane.org>
2007-04-11 17:39 ` Michael Riepe
[not found] ` <461D1D3F.8050001-0QoEqw4nQxo@public.gmane.org>
2007-04-11 18:31 ` David Abrahams
[not found] ` <87fy76ahkk.fsf-2bi8v6C3s58ZC2cDDG0gXw@public.gmane.org>
2007-04-11 18:46 ` Michael Riepe
[not found] ` <461D2CFD.8040008-0QoEqw4nQxo@public.gmane.org>
2007-04-11 21:52 ` David Abrahams
2007-04-12 1:52 ` David Abrahams
[not found] ` <87k5wi741c.fsf-2bi8v6C3s58ZC2cDDG0gXw@public.gmane.org>
2007-04-12 3:35 ` Avi Kivity
[not found] ` <461DA903.50902-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-04-12 3:41 ` Anthony Liguori [this message]
2007-04-12 11:01 ` David Abrahams
[not found] ` <87slb5zwj5.fsf-2bi8v6C3s58ZC2cDDG0gXw@public.gmane.org>
2007-04-12 11:23 ` Avi Kivity
2007-04-12 13:33 ` David Abrahams
[not found] ` <87odltyay4.fsf-2bi8v6C3s58ZC2cDDG0gXw@public.gmane.org>
2007-04-12 13:59 ` Avi Kivity
2007-04-12 14:56 ` David Abrahams
2007-04-16 8:58 ` David Abrahams
2007-04-24 0:17 ` David Abrahams
[not found] ` <87y7ki62yn.fsf-2bi8v6C3s58ZC2cDDG0gXw@public.gmane.org>
2007-04-24 8:47 ` Avi Kivity
[not found] ` <462DC415.3000209-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-04-24 11:58 ` David Abrahams
[not found] ` <87k5w256ht.fsf-2bi8v6C3s58ZC2cDDG0gXw@public.gmane.org>
2007-04-25 8:04 ` Avi Kivity
[not found] ` <462F0B7E.8050300-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-04-25 12:00 ` David Abrahams
2008-07-06 12:13 ` [kvm-devel] " Avi Kivity
2008-07-06 13:55 ` David Abrahams
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