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On Tue, May 31, 2011 at 12:11 PM, Tanstaafl <tanstaafl@×××××××××××.org> wrote: |
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> On 2011-05-31 1:31 PM, James wrote: |
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>> The only thing I've read online that may be applicable is that there |
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>> have been some issues with kernel panics when you give the guest OS |
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>> more than 1 processor. It would suck badly if SMP didn't work well on |
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>> vbox. |
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> |
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> My understanding is it is a general rule that you never give any VM more |
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> than one processor, regardless of which vm hypervisor you are running... |
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> |
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> |
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My platform is a Gentoo i7-980 Extreme processor so I have 12 CPUs (6 |
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cores * 2 for hyperthreading) |
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In Virtualbox I'm running both Gentoo and Win 7 VMs, each allocated 4 |
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processors. In Win 7 I have one app that uses everything it can find |
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so when it's running all 4 processors are 100% utilized. In Linux I |
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see the CPU usage at 33%. Win 7 is sluggish when this app is running |
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as it hogs from the system |
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|
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In VMWare Player I'm running Win XP VMs with 2 processors. None of my |
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apps in XP use more than 1 processor. XP itself is quite responsive |
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even when these apps are using 1 of the 2 processors dedicated the the |
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VM. |
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|
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I seldom run more than 1 app in any Windows VM as I don't trust |
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Windows. I've not had any problems with any of these VMs that I'd |
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associate with using multiple cores. |
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And yes, I do own these Windows licenses. VMs keep that money useful |
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until some day some Linux apps come along that do what these do for me |
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in Windows. |
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- Mark |
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