From: Ross Boylan <ross@biostat.ucsf.edu>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: ross@biostat.ucsf.edu, Kevin Shanahan <kmshanah@ucwb.org.au>,
Avi Kivity <avi@redhat.com>,
kvm@vger.kernel.org
Subject: Re: XP smp using a lot of CPU
Date: Fri, 15 May 2009 08:41:57 -0700 [thread overview]
Message-ID: <1242402117.17637.14.camel@corn.betterworld.us> (raw)
In-Reply-To: <20090515145651.GB6304@amt.cnet>
On Fri, 2009-05-15 at 11:56 -0300, Marcelo Tosatti wrote:
> Ross,
>
> Can you confirm the qemu process CPU consumption is down to acceptable
> levels if you dont specify -no-acpi?
>
> Thanks
Simply starting without -no-acpi did not help. I tried to do a Windows
XP repair, but seemed to end up nasically doing a reinstall. The system
now seems to be hung up.
I'm probably going to end up trying a fresh install; I'll report more
results when I have them.
>
>
> On Thu, May 14, 2009 at 01:01:11PM -0700, Ross Boylan wrote:
> > On Wed, 2009-05-13 at 09:56 +0300, Avi Kivity wrote:
> > > Ross Boylan wrote:
> > > > I just installed XP into a new VM, specifying -smp 2 for the machine.
> > > > According to top, it's using nearly 200% of a cpu even when I'm not
> > > > doing anything.
> > > >
> > > > Is this real CPU useage, or just a reporting problem (just as my disk
> > > > image is big according to ls, but isn't really)?
> > > >
> > > > If it's real, is there anything I can do about it?
> > > >
> > > > kvm 0.7.2 on Debian Lenny (but 2.6.29 kernel), amd64. Xeon chips; 32
> > > > bit version of XP pro installed, now fully patched (including the
> > > > Windows Genuine Advantage stuff, though I cancelled it when it wanted to
> > > > run).
> > > >
> > > > Task manager in XP shows virtually no CPU useage.
> > > >
> > > > Please cc me on responses.
> > > >
> > > >
> > >
> > > I'm guessing Windows uses a pio port to sleep, which kvm doesn't
> > > support. Can you provide kvm_stat output?
> > markov:~# kvm_stat -1
> > efer_reload 0 0
> > exits 9921384 566
> > fpu_reload 267970 0
> > halt_exits 1 0
> > halt_wakeup 3 0
> > host_state_reload 4026050 17
> > hypercalls 0 0
> > insn_emulation 1329455 0
> > insn_emulation_fail 154 0
> > invlpg 176773 0
> > io_exits 3818270 0
> > irq_exits 1434046 566
> > irq_injections 326730 0
> > irq_window 164827 0
> > largepages 0 0
> > mmio_exits 35892 0
> > mmu_cache_miss 29760 0
> > mmu_flooded 19908 0
> > mmu_pde_zapped 15557 0
> > mmu_pte_updated 82088 0
> > mmu_pte_write 97990 0
> > mmu_recycled 0 0
> > mmu_shadow_zapped 43276 0
> > mmu_unsync 891 0
> > mmu_unsync_global 0 0
> > nmi_injections 0 0
> > nmi_window 0 0
> > pf_fixed 1231164 0
> > pf_guest 276083 0
> > remote_tlb_flush 115606 0
> > request_irq 0 0
> > request_nmi 0 0
> > signal_exits 5 0
> > tlb_flush 960198 0
> >
> > This is with the VM displaying the XP "It is now safe to turn off your
> > computer". CPU remains about 200% from kvm. Invoked with
> > sudo vdeq kvm -net nic,vlan=1,macaddr=52:54:a0:12:01:00 \
> > -net vde,vlan=1,sock=/var/run/vde2/tap0.ctl \
> > -std-vga -hda XP.raw \
> > -boot c \
> > -soundhw es1370 -localtime -no-acpi -m 1G -smp 2
> >
> > Next I'll trying fiddling with acpi.
> >
> > --
> > Ross Boylan wk: (415) 514-8146
> > 185 Berry St #5700 ross@biostat.ucsf.edu
> > Dept of Epidemiology and Biostatistics fax: (415) 514-8150
> > University of California, San Francisco
> > San Francisco, CA 94107-1739 hm: (415) 550-1062
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe kvm" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2009-05-15 15:42 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-13 0:41 XP smp using a lot of CPU Ross Boylan
2009-05-13 1:05 ` Elias Probst
2009-05-13 6:56 ` Avi Kivity
2009-05-14 14:10 ` Kevin Shanahan
2009-05-14 20:01 ` Ross Boylan
[not found] ` <20090515145651.GB6304@amt.cnet>
2009-05-15 15:41 ` Ross Boylan [this message]
2009-05-15 20:24 ` XP smp using a lot of CPU [SOLVED] Ross Boylan
2009-05-15 23:00 ` Brian Jackson
2009-05-13 20:23 ` XP smp using a lot of CPU Erik Rull
2009-05-17 21:35 ` Avi Kivity
2009-05-19 17:35 ` Erik Rull
2009-05-20 12:01 ` Avi Kivity
2009-05-20 20:00 ` Erik Rull
2009-05-24 11:42 ` Avi Kivity
2009-05-25 10:01 ` Erik Rull
2009-05-25 10:46 ` Avi Kivity
[not found] ` <fupb74dtcl3kru3oo7UYAxe124vaj_firegpg@mail.gmail.com>
2009-05-14 10:25 ` Johannes Schlatow
2009-05-14 15:40 ` Ross Boylan
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