Hi, Christian.
It would be great if you could share your knowledge on this.
Thank you!
Murilo
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https://bugs.launchpad.net/bugs/1853042
Title:
Ubuntu 18.04 - vm disk i/o performance
Christian,
Patch from comment 8 seems yet another nice improvement. We haven't
tried it to have a strong opinion.
If it's included, then I think patch from comment 9 won't hurt being
added too.
Murilo
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Christian,
Using QEMU from comment 6, it improved the performance for numjobs=4 and
numjobs=64 cases, respectively:
READ: bw=1140MiB/s (1195MB/s), 271MiB/s-302MiB/s (284MB/s-317MB/s),
io=66.8GiB (71.7GB), run=60001-60001msec
READ: bw=4271MiB/s (4479MB/s), 30.1MiB/s-82.6MiB/s
Christian,
The test case for this is to:
- passthrough the NVMe disk to guest;
- and run fio benchmarks against the passed-through NVMe disk in the guest.
I have detailed these steps and pasted the commands in the bug
description. Please let me know if steps are not clear.
The only required
I can confirm that the build ppa:ci-train-ppa-service/3367 (for Bionic)
works as expected, i.e.: POWER9 guest boots and no hang is observed.
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https://bugs.launchpad.net/bugs/1787408
Hi, Christian.
I'm glad you've already tested this on P9. Thank you!
Just for the record, I've managed to test
https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/3362 on Cosmic using
the very same P8 box I used to report this and it fixed the bug, i.e. guest
booted as expected and no
** Package changed: ubuntu => qemu (Ubuntu)
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https://bugs.launchpad.net/bugs/1787408
Title:
qemu 1:2.11+dfsg-1ubuntu7.4 hangs when -cpu POWER9 is specified
To manage notifications
** Patch added: "debdiff for Xenial qemu"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1723914/+attachment/5099155/+files/debdiff_qemu_xenial.patch
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Manoj, Christian,
Please refer to the attached debdiff (it was my first debdiff, so it
might contain errors :)).
Let me know if you need anything else.
Cheers
Murilo
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Pior to commit 8b9f2118ca40b1de72d8f75b59a5fb4d347a69f7 ("ppc64: set
MSR_SF bit"), qemu-system-ppc64 was not setting the 64-bit mode bit in
MSR.
Applying it on top of qemu 2.5 from Ubuntu 16.04.04, makes kvm-unit-
tests happy.
muriloo@jaspion1:~/sources/ubuntu$ dpkg-source -x
My patch was accepted upstream and it seems to fix this issue.
https://github.com/aik/SLOF/commit/db35f1b8a2d3e44f4a12ca926359cc2575e98064
commit db35f1b8a2d3e44f4a12ca926359cc2575e98064
Author: Murilo Opsfelder Araujo
Date: Fri Jun 23 09:23:25 2017 -0300
Today I applied Lucid updates and stopped working again.
With Firefox 10.0 it was working fine. With Firefox 10.0.1 it isn't.
Here is the aptitude log:
Aptitude 0.4.11.11: log report
Mon, Feb 13 2012 09:55:10 -0200
IMPORTANT: this log only lists intended actions; actions which fail due to
dpkg
I believe this was fixed in kernel 2.6.38-10-generic #46 on Natty.
I'm not seeing those messages in /var/log/messages anymore.
Is this still present for someone?
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Hi guys,
I'd like to add that my T410 didn't freeze with linux-image-2.6.32-32
-generic-pae_2.6.32-32.63~tellis04LP805209_i386.deb also.
Thanks,
Murilo
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