VirtualBox

Ticket #3950 (closed defect: obsolete)

Opened 5 years ago

Last modified 5 months ago

Linux guest suffers high system CPU utilization

Reported by: wotan Owned by:
Priority: major Component: other
Version: VirtualBox 2.2.2 Keywords:
Cc: Guest type: Linux
Host type: Windows

Description

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

VBox.log Download (39.8 KB) - added by wotan 5 years ago.

Change History

Changed 5 years ago by wotan

comment:1 Changed 5 years ago by wotan

I have also tried with and without VT-x.

comment:2 Changed 5 years ago by wotan

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

comment:3 Changed 5 months ago by frank

  • Status changed from new to closed
  • Resolution set to obsolete
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