Comments on: VirtualBox High CPU Usage Problem Solved

By: Benny

Benny — Thu, 02 Feb 2012 10:33:03 +0000

This fix is still working. Great job!
Thanks

By: Seny

Seny — Thu, 27 Oct 2011 13:44:42 +0000

- Set 1 CPU
- Uncheck “Enable IO APIC”
- Uncheck “Enable Nested Paging”

That finally worked for me after messing up with the settings for a while. Host Mac OS 10.6.8, guest CentOS 6, VirtualBox 4.1.4.

By: Turner

Turner — Sat, 22 Oct 2011 10:40:48 +0000

Hi. I have got the same problem. But…can somebody tell me, how to create the new dummy guest machine in Virtual Box?

Thanks a lot!

By: Josh

Josh — Sun, 11 Sep 2011 00:12:20 +0000

Was running Ubuntu 8.10 client on VirtualBox 4.1.2 on Mac 10.6 host when this started.

Fixed it by checking the “Enable IO APIC” box in the System processor section.

Hope this helps somebody!

By: laamanni

laamanni — Tue, 06 Sep 2011 15:54:54 +0000

Worked for me also.
Host: Win7_x64 4GB ram VirtualBox 4.1.1
Guest: Fedora 15 PAE i686

CPU usage dropped from ~25% -> ~5%
I tried many things before, like:
-divider=10 (kernel)
-Disable X window
-set cpu affinity from taskmgr.exe
-yelling & pulling hair
-asking help
^- and nothing from the above list worked… …like a dummy VM

By: High CPU Usage VirtualBox « DATA's BASE

High CPU Usage VirtualBox « DATA's BASE — Thu, 01 Sep 2011 10:34:17 +0000

[...] belum menemukan jawaban pasti kenapa bug ini bisa muncul. Seorang user bernama Jent dalam sebuah website mengatakan : The problem you described here is actually due to a bug in virtual box that has to do [...]

By: roger

roger — Thu, 25 Aug 2011 20:14:57 +0000

This worked for me: since I have quad core just creating and runnning one “dummy” VM doesn’t work (what it does is trick Vbox into assigning just one core per VM). So what I had to do is go into program files\virtualbox and “pin” every executable within virtualbox to cpu_0
Then it works.

By: user21

user21 — Tue, 26 Jul 2011 19:56:01 +0000

Hi, the high cpu usage is back in 4.1 version.

By: hayzey

hayzey — Thu, 02 Jun 2011 15:30:57 +0000

Works a treat for me. VirtualBox 4.0.8; host OS = Windows 7; guest OS = CentOS 4.5.

I tried setting process affinity for the CentOS process with no luck. Bringing the dummy VM online (with no OS, halts immediately) lowers CPU from 30% to 2%!

By: SmL9

SmL9 — Tue, 24 May 2011 15:05:41 +0000

Wow it actually works! My main OS is Windows 7 with VirtualBox version 4.0.0 running CentOS 5.4