From what I can see it is.
On 03/20/2011 08:57 PM, Serge Hallyn wrote:
@waltc,
is this bug fixed for you in the latest natty qemu-kvm? Latest natty is
based on qemu-kvm-0.14.0 release, which you say includes the fixes you
were looking for.
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Thanks very much, will mark it 'fix released' then.
** Changed in: qemu-kvm (Ubuntu)
Status: Confirmed = Fix Released
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** Changed in: qemu-kvm (Ubuntu)
Status: Incomplete = Confirmed
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Title:
virtio-net performance in 10Gbs lan
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@waltc,
is this bug fixed for you in the latest natty qemu-kvm? Latest natty is
based on qemu-kvm-0.14.0 release, which you say includes the fixes you
were looking for.
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** Changed in: qemu-kvm (Ubuntu)
Status: In Progress = Incomplete
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Title:
virtio-net performance in 10Gbs lan
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I don't know that I can successfully vet the fix. I can say from the hit
I found on some forum the guy with the 10Gb network verified as fixed
after applying the 'bottom-half fix. I will try that this w/e. I see you
changed the status to incomplete. Is that due to waiting on me? Oh, I
also
Right, marking 'Incomplete' is so that when looking at long buglists I
can tell which ones are waiting on input. Please feel free to move it
back to 'confirmed' or 'in progress' when you have info. (Though Ill
get email so it's not necessary).
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Thanks, Waltc. I'll put together a package today based on the final
qemu-kvm-0.14 for you to test, just to make sure.
Note that we won't be able to put 0.14 into maverick, but if we can
choose a few commits to cherrypick, that would be do-able. If you're
just as well off using natty, that'll be
** Branch linked: lp:~serge-hallyn/ubuntu/natty/qemu-
kvm/merge-0.14.0-final
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Title:
virtio-net performance in 10Gbs lan
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@Waltc,
actually the commits you were hoping for are already in the 0.14.0-rc1
which is currently in natty.
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Title:
I'll still finish the 0.14.0 build for the archive, and then go ahead
and create a new daily build with which to test. If that still exhibits
the problem then we'll involve upstream.
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Here are the amd64 debs of a package built on the qemu-kvm 0.14.0 final
release. I hope to get this into natty in any case, but could you test
to see if this fixes the performance degradation for you?
** Attachment added: qemu-debs.tgz
I've also put the very latest upstream qemu-kvm tree up at
https://launchpad.net/~ubuntu-server-edgers/+archive/server-edgers-qemu-
kvm. If you can reproduce the performance regression with that package,
then we can engage upstream.
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My omission. I thought I had said I was on 10.10. I am at 10.10 for both
UEC as well as guests. I merely tried 11.04 to see if that resolved the
issue. However I really didn't expect to see a change, my nic is 1Gb. I
was helping a guy on the Euca mb that didn't realize there was a
virtio_net and
I believe this is fixed in QEMU 0.14... referring to changelist (first
paragraph) on
http://wiki.qemu.org/Changelog/0.14#virtio
The references I gave above specifically referenced the authors applying
the 'bottom-half' fix, although they did not, as I recall, mention what
the fixed was against.
I used iperf -s on one instance and iperf -c xxx.xx.xx.xx on the client
image of two guest OS's running under UEC.
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I tried running natty guests and the results were actually slightly
slower. This makes sense as kvm is a host component and qemu is
affiliated with kvm. Presumably there is no guest component?
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Thanks for reporting this bug and helping to make Ubuntu better.
Unfortunately your reference links got abbreviated so I was unable to
follow them.
Could you please provide a little more information about your particular
setup:
1. Which version of Ubuntu are you on? I'm wondering whether the
18 matches
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