Opened 15 years ago

Closed 10 years ago

#3950 closed defect (obsolete)

Linux guest suffers high system CPU utilization

Reported by: Jonathan Fosburgh Owned by:
Component: other Version: VirtualBox 2.2.2
Keywords: Cc:
Guest type: Linux Host type: Windows


When performing certain kinds of tasks within a Linux guest (in this instance specifically Gentoo) certain types of tasks cause the system CPU utilization to jump to very high levels, typicall >70% and often >90%. This seems most pronounced when doing things within portage that run shell scripts or python scripts. I am using the current guest additions. I have tried HZ at 100 and 1000. With and without apic, with and without smp. I get somewhat better performance with preemption set to server instead of the desktop models.

Attachments (1)

VBox.log (39.8 KB ) - added by Jonathan Fosburgh 15 years ago.

Download all attachments as: .zip

Change History (4)

by Jonathan Fosburgh, 15 years ago

Attachment: VBox.log added

comment:1 by Jonathan Fosburgh, 15 years ago

I have also tried with and without VT-x.

comment:2 by Jonathan Fosburgh, 15 years ago

Problem continues in 3.0.x (through 3.0.4). However, the ability to use multiple CPUs alleviates part of the problem.

comment:3 by Frank Mehnert, 10 years ago

Resolution: obsolete
Status: newclosed
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