High CPU usage in Fedora guest, not on host
Posted: 23. Feb 2011, 01:25
Hello everyone, I do apologize if this has been covered, but my days of research has yielded nothing. The problem I am having is with my Fedora 14 guest. I have an intel i5 560m processor and i have assigned one core to virtualbox as well as 1.5gb of ram, out of my 8gb. The slightest movements I make in the guest OS, like dragging around windows, sky rockets my cpu usage as shown by my linux system monitor. My host (windows 7) shows roughly 25%-30% usage of cpu. which doesn't seem too bad, but linux shows the cpu a being 90%-100% used.
I have read many forums where people see high cpu usage on their host computer, where as i am seeing it on my linux. At idle, linux shows cpu down to ~10%, but slight movement of icons, or opening of any files boosts it up instantly anywhere from 60%-100%.
background of what i've done (I am new to vbox and linux, so please bare with me). I have already installed guest additions on fedora, that didn't help. Tried adding divider=10 in my menu.lst to reduce the cycles of the CPU, as one forum had suggested, but that didn't do anything either. When I check again though, CONFIG_HZ is still set at 1000. Can someone else try explaining how I can set it to 100?
Sorry for the long-winded message, but I am really at an ends right now. Fedora takes rather long to boot, and everything is very choppy (moving windows/icons around). Any help is greatly appreciated thanks!
I have read many forums where people see high cpu usage on their host computer, where as i am seeing it on my linux. At idle, linux shows cpu down to ~10%, but slight movement of icons, or opening of any files boosts it up instantly anywhere from 60%-100%.
background of what i've done (I am new to vbox and linux, so please bare with me). I have already installed guest additions on fedora, that didn't help. Tried adding divider=10 in my menu.lst to reduce the cycles of the CPU, as one forum had suggested, but that didn't do anything either. When I check again though, CONFIG_HZ is still set at 1000. Can someone else try explaining how I can set it to 100?
Sorry for the long-winded message, but I am really at an ends right now. Fedora takes rather long to boot, and everything is very choppy (moving windows/icons around). Any help is greatly appreciated thanks!