VB will only use 25% of host cpu

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AFI420
Posts: 3
Joined: 14. Aug 2013, 16:21

VB will only use 25% of host cpu

Post by AFI420 »

My linux guest is unbearably slow now. CentOS 6.4 on VB 4.2.16. I havent seen VB use more than 25% of my cpu. Just building the guest additions took 15 minutes, whereas it used to take less than one. Not sure which logs to post. I moved the cpu cap down to 50% to see what would happen and now it looks like its only using 16-17% at most. I dont have hardware virtualization turned on because i cant access my bios easily, but this never used to be a problem.
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CentOS-2013-08-14-08-03-07.log
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Perryg
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Posts: 34369
Joined: 6. Sep 2008, 22:55
Primary OS: Linux other
VBox Version: OSE self-compiled
Guest OSses: *NIX

Re: VB will only use 25% of host cpu

Post by Perryg »

Code: Select all

00:00:05.484570 HWACCM: No VT-x or AMD-V CPU extension found. Reason VERR_VMX_MSR_LOCKED_OR_DISABLED
Enable hardware virtualization in your PC bios.
AFI420
Posts: 3
Joined: 14. Aug 2013, 16:21

Re: VB will only use 25% of host cpu

Post by AFI420 »

Perryg wrote:

Code: Select all

00:00:05.484570 HWACCM: No VT-x or AMD-V CPU extension found. Reason VERR_VMX_MSR_LOCKED_OR_DISABLED
Enable hardware virtualization in your PC bios.
I think thats from when i put the virtual cores up to 2. I have turned it back off, i never had to use that before and it was never this slow. Im trying to remember if this was the reason i didnt update vbox, then i forgot about that and updated
Last edited by AFI420 on 14. Aug 2013, 17:23, edited 1 time in total.
Perryg
Site Moderator
Posts: 34369
Joined: 6. Sep 2008, 22:55
Primary OS: Linux other
VBox Version: OSE self-compiled
Guest OSses: *NIX

Re: VB will only use 25% of host cpu

Post by Perryg »

I repeat, turn it on and see the difference in speed.
AFI420
Posts: 3
Joined: 14. Aug 2013, 16:21

Re: VB will only use 25% of host cpu

Post by AFI420 »

Perryg wrote:I repeat, turn it on and see the difference in speed.
I cannot without going through some trouble, why have i never had this issue before? what changed?
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