bhyve uses 10-15% idle cpu

[Kennyvb8]

Hello there
after updating to FreeNAS 11.1, my bhyve VM's uses 10-15% in idle, where in FreeNAS 10 they used 0.1-1% in idle
what has changed ?

Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz
16265MB 1800Mhz
FreeNAS-11.1-RELEASE

 

[Kennyvb8]

Sent from my iPhone using Tapatalk

 

[dlavigne]

Notes that the bug report is here: https://redmine.ixsystems.com/issues/27658.

 

[corv]

Unfortunately the bug report is private.

Has there been any progress?

 

[Kennyvb8]

Nope. No progress in the bug report.


Sent from my iPhone using Tapatalk

 

[adrianwi]

Can the bug report be made public? I have a bhyve VM that's always using at least ~15% CPU, even when it's doing nothing.

bhyve seems to be far more processor intensive that vbox was running in a jail.

 

[Kennyvb8]

Can the bug report be made public? I have a bhyve VM that's always using at least ~15% CPU, even when it's doing nothing.

bhyve seems to be far more processor intensive that vbox was running in a jail.

Not really no, my full log is in that report, and it was the developers that made it private. so think theres some info in there the public shouldent see

 

[adrianwi]

Ok, thanks for raising the ticket. If you can keep us updated in this thread? Happy to provide anything that might help resolve.

 

[Kennyvb8]

Ok, thanks for raising the ticket. If you can keep us updated in this thread? Happy to provide anything that might help resolve.

think actully you should make a bug report, maybe they eventually merge them then, and maybe do something..but sure i'll keep this thread in the loop

 

[dlavigne]

Can the bug report be made public? I have a bhyve VM that's always using at least ~15% CPU, even when it's doing nothing.

bhyve seems to be far more processor intensive that vbox was running in a jail.

It will be made public once the dev is finished with the debug and removes it.

 

[Kennyvb8]

Hmm new update is out.. but cant see its on the fix list.. anyone upgradet yet ?


Sent from my iPhone using Tapatalk

 

[dlavigne]

Looks like that ticket got moved up to the next update (11.2-BETA1, currently slated for March 19).

 

[corv]

Just upgraded to 11.1-U4 and still experiencing this bug.

Is there a build in the nightlies that is fixed?

 

[Kennyvb8]

sadly no, but sending them debug.log and what they asked for. each time they bump it to next release

 

[corv]

Fortunately I have just found a workaround!

Remove the VNC device on the VM and idle CPU usage goes below 1%!

 

[Ericloewe]

Please add that information to the bug report. Maybe the devs can calm down VNC when it's not actually in use.

 

[Kennyvb8]

Please add that information to the bug report. Maybe the devs can calm down VNC when it's not actually in use.

Just did


Sent from my iPhone using Tapatalk

 

[fracai]

Fortunately I have just found a workaround!
Remove the VNC device on the VM and idle CPU usage goes below 1%!

I removed the VNC device yesterday and haven't seen any difference in CPU usage. Did you also restart the VM?

 

[corv]

I removed the VNC device yesterday and haven't seen any difference in CPU usage. Did you also restart the VM?

Yes I did

 

[cancel]

Hi guys,

Just did the update to 11.1-U4, after trying everything from 11.1-Release to 11.1-U3 and experiencing the bhyve 10-15% issue reported here.
Also before update I removed all the VNC devices from my VMs. Then I did the upgrade to 11.1-U4.

Seems that the workaround with removing the VNC device works ok :
PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND
8861 root 12 20 0 549M 317M kqread 6 2:14 2.02% bhyve: 3_ubuntu1604 (bhyve)
8834 root 12 20 0 549M 116M kqread 3 1:12 1.20% bhyve: 1_pfsense (bhyve)
11532 root 1 20 0 9996K 4432K CPU0 0 0:01 0.34% top