Host OS: XP SP3
Guest OS: FreeBSD 7.2
Processor: C2D (CPU with 2 cores)
I use FreeBSD without X. FreeBSD consumes practically no resources when in idle. But in my host OS VB always consumes 100% of one core of my two core CPU. So it uses 50% CPU constantly!
Any solution suggested to repair this?
Host XP SP3 Guest FreeBSD 7.2 High CPU
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Perryg
- Site Moderator
- Posts: 34369
- Joined: 6. Sep 2008, 22:55
- Primary OS: Linux other
- VBox Version: OSE self-compiled
- Guest OSses: *NIX
Re: Host XP SP3 Guest FreeBSD 7.2 High CPU
From other posts that have this problem.
http://forums.virtualbox.org/viewtopic.php?f=4&t=18251To fix this, you have to build guest kernel with HZ=100 (kernel timer) and without tickless mode.
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Jamik
- Posts: 5
- Joined: 29. May 2009, 15:40
- Primary OS: MS Windows XP
- VBox Version: OSE self-compiled
- Guest OSses: FreeBDS XP Puppy...
Re: Host XP SP3 Guest FreeBSD 7.2 High CPU
Thanks for advice.
This does the job.
echo kern.hz=100 >> /boot/loader.conf
So in /boot/loader.conf a line should be added kern.hz=100
Then reboot and CPU load in HOST OS is down to zero in idle. So no rebuilding kernel or other stuff just this line does the job!
http://www.freesoftwaremagazine.com/art ... or_freebsd
Here is where i found where to put the line. Problem solved!
This does the job.
echo kern.hz=100 >> /boot/loader.conf
So in /boot/loader.conf a line should be added kern.hz=100
Then reboot and CPU load in HOST OS is down to zero in idle. So no rebuilding kernel or other stuff just this line does the job!
http://www.freesoftwaremagazine.com/art ... or_freebsd
Here is where i found where to put the line. Problem solved!
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zero1eye
- Posts: 2
- Joined: 25. Jul 2009, 23:38
- Primary OS: MS Windows 7
- VBox Version: OSE other
- Guest OSses: Freebsd
Re: Host XP SP3 Guest FreeBSD 7.2 High CPU
This worked perfectly, thank you.
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