Bug 1532217 - Latency in virtual client displays since upgrade to 27
Summary: Latency in virtual client displays since upgrade to 27
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: qemu
Version: 27
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Fedora Virtualization Maintainers
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-01-08 11:59 UTC by cslee-redhat
Modified: 2018-11-30 22:10 UTC (History)
11 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2018-11-30 22:10:38 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)
xmldump output (5.53 KB, text/plain)
2018-06-27 20:40 UTC, cslee-redhat
no flags Details
log file (3.03 KB, text/plain)
2018-06-27 20:41 UTC, cslee-redhat
no flags Details

Description cslee-redhat 2018-01-08 11:59:53 UTC
Description of problem:
Since moving to version 27 of Fedora virtual machines have slow response to mose and keyboard actions.
I can not tell if it is screen update not happenig or if the action is not getting to the machine for a while.
Machines used to be smooth to run but now are quite frustrating.


How reproducible:
upgrade host and clients to fedora 27, unfortunately upgrades were all done at the same time and so I can not place blame on host or client end.

Steps to Reproduce:
1.Use Boxes or virtual machine manager to open the virtual machine console.
2.browse a web page or edit a document
3.note the delay when performing tasks like typing, moving mouse, selecting  or using drop down boxes.


Expected results:
Same smooth operation as before.

Additional info:
2 x Fedora 27 client machines running on well speced F27 host
Using Virtio video
Gnome Boxes and VMM console used with no difference in latency.

Comment 1 Jan Vlug 2018-06-23 19:05:33 UTC
Did you enable 3D acceleration in the Virtio Video details? This greatly improved the speed for my VMs.

Comment 2 Cole Robinson 2018-06-26 14:29:54 UTC
Please provide your VM config:

virsh --connect qemu:///session dumpxml $VMNAME
~/.cache/libvirt/qemu/log/$VMNAME.log

Comment 3 cslee-redhat 2018-06-27 20:40:41 UTC
Created attachment 1455127 [details]
xmldump output

Comment 4 cslee-redhat 2018-06-27 20:41:35 UTC
Created attachment 1455128 [details]
log file

Comment 5 Cole Robinson 2018-07-12 20:40:07 UTC
So you have virtio video with GL passthrough disabled. Maybe in virt-manager try switching to video model=qxl and see if that makes any difference, it will help narrow it down at least

Comment 6 cslee-redhat 2018-07-14 10:51:32 UTC
qxl makes it much more responsive, I do not need to move the mouse to see my typing any more.
I have GL passthrough disabled as I use this as a VDI solution and GL is not network happy yet, not that I have network running at the moment due to the latency issue.

Comment 7 Ben Cotton 2018-11-27 14:59:45 UTC
This message is a reminder that Fedora 27 is nearing its end of life.
On 2018-Nov-30  Fedora will stop maintaining and issuing updates for
Fedora 27. It is Fedora's policy to close all bug reports from releases
that are no longer maintained. At that time this bug will be closed as
EOL if it remains open with a Fedora  'version' of '27'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 27 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Comment 8 Ben Cotton 2018-11-30 22:10:38 UTC
Fedora 27 changed to end-of-life (EOL) status on 2018-11-30. Fedora 27 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this
bug.

Thank you for reporting this bug and we are sorry it could not be fixed.


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