[Expired for qemu-kvm (Ubuntu) because there has been no activity for 60
days.]
** Changed in: qemu-kvm (Ubuntu)
Status: Incomplete => Expired
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Hi Fabio,
so then it sounds like it may be working fine. Once the VM is
installed, does performance become more tolerable? What sort of backing
store do you have - are you using an ecryptfs encrypted home directory?
Keeping a KVM backign store in an encrypted home directory could
certainly slow
Ok, I've done the test and the consumptions go down with writeback too,
and also stay on a lower level respect that without writeback.
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Title:
hi
Quoting Fabio Marconi (fabiomarc...@ubuntu.com):
> Hallo Serge
> Sorry I'm doing to much things at the same time forgetting part of this issue.
> Yes it reach that point and consumption go down with the cache=none setting
> (or the upgrade has its influence?), and in this way the machine is really
Hallo Serge
Sorry I'm doing to much things at the same time forgetting part of this issue.
Yes it reach that point and consumption go down with the cache=none setting (or
the upgrade has its influence?), and in this way the machine is really fast.
Do you suggest to revert back to cache=writeback ?
I can't reproduce this on an amd laptop with uptodate quantal, using the
quantal desktop iso for a guest.
I do get about 174% cpu time for kvm while it is starting up and doing
heavy i/o. But when it offers me the choice to try or install ubuntu,
it settles down to 3%. I assume in your case the
yes with precise or win8 same behaviour, seems that there's some particular
setting to speedup the guest when something moves, but this makes it jump to
over 200%.
Also I'm using a -VT processor i3
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Thanks Fabio,
Odd, I was sure that would be it. Do you get the same result with
precise-desktop?
I'm sorry that I haven't had a chance to reproduce. I'll try to do so
this afternoon.
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Hallo
here it is
njin@quantic:~/Ubuntu$ ps -ef | grep kvm
root 765 2 0 08:31 ?00:00:00 [kvm-irqfd-clean]
njin 11859 11822 0 19:18 ?00:00:00 /bin/sh -c kvm -uuid
4b6f3851-59ef-4af0-a8be-ea600aaa78c6 -m 1024 -smp 4 -cdrom
/home/njin/Ubuntu/quantal-desktop-amd64.iso
Fabio,
could you show the 'ps -ef | grep kvm' output with the updated kvm.py
file?
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Title:
high use of resource
To manage notifications about t
Just now I'm downloading a new version (just uploaded) of qemu-kvm, hope it
fix..
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Hallo Serge
Actually, in Quantal, the file is located at:
/usr/lib/python2.7/dist-packages/testdrive/virt/kvm.py
I've done the requested changes, but it won't work.
Looking at attached screenshot seems that I've done things right. If you need
something more, just let me know.
Thanks
Fabio
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Quoting Fabio Marconi (fabiomarc...@ubuntu.com):
> Hallo Serge
> I've added the cache=none at the kvm testdrive parameters, but seems not
> affecting the settings:
>
> njin@quantic:~$ ps -ef | grep kvm
> root 562 2 0 19:06 ?00:00:00 [kvm-irqfd-clean]
> njin 3533 3496 0 2
Hallo Serge
I've added the cache=none at the kvm testdrive parameters, but seems not
affecting the settings:
njin@quantic:~$ ps -ef | grep kvm
root 562 2 0 19:06 ?00:00:00 [kvm-irqfd-clean]
njin 3533 3496 0 20:34 ?00:00:00 /bin/sh -c kvm -uuid
e75dba4a-1fa8-4ee7
Quoting Fabio Marconi (fabiomarc...@ubuntu.com):
> Hallo
> Dunno if I done right, but in testdrive I've added -cache=none to the KVM
> arguments.
Could you then restart the VM and show the result here of:
ps -ef | grep kvm
> I've tried also to run in terminal but it return an Error -13
Hallo
Dunno if I done right, but in testdrive I've added -cache=none to the KVM
arguments.
I've tried also to run in terminal but it return an Error -13 when I try to
load the iso image.
Thanks
Fabio
** Changed in: qemu-kvm (Ubuntu)
Status: Incomplete => New
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Thanks for reporting this bug.
Could you change the cache=writeback to cache=none, and see if that improves
the performance?
** Changed in: qemu-kvm (Ubuntu)
Importance: Undecided => High
** Changed in: qemu-kvm (Ubuntu)
Status: New => Incomplete
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** Attachment added: "Screenshot from 2012-08-20 20:28:50.png"
https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1039166/+attachment/3269352/+files/Screenshot%20from%202012-08-20%2020%3A28%3A50.png
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** Description changed:
Hello
Running testdrive with qemu-kvm.
KVM is really slow, the cpu consumption is everytime over the 100% with a
simple minimal installation of Ubuntu server.
I'm waiting something about more than an hour to have it installed.
Thanks
Fabio
+
+ njin@quantic:~$
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