High CPU using Windows 10 Version 1803 as host and guest
Re: High CPU using Windows 10 Version 1803 as host and guest
I'm having the same issue, Windows 10 Host and guest, both 1803, 18% CPU idle.
The weird thing is that if I start a second VM (Ubuntu 32 bits), the CPU goes down to normal.
As soon as I power it down, CPU back yo 18%..
The weird thing is that if I start a second VM (Ubuntu 32 bits), the CPU goes down to normal.
As soon as I power it down, CPU back yo 18%..
Re: High CPU using Windows 10 Version 1803 as host and guest
@Simple07,
It's been 2 days and it seems ok with drag&drop disabled.
If it solves the problem I 'll keep these settings.
Thanks anyway
It's been 2 days and it seems ok with drag&drop disabled.
If it solves the problem I 'll keep these settings.
Thanks anyway
Re: High CPU using Windows 10 Version 1803 as host and guest
In my case, the problem was fixed by randomly switching to the ICH9 chipset.
Re: High CPU using Windows 10 Version 1803 as host and guest
At long last the problem is gone.
The solution is: PIIX3 -> ICH9 !!!
The solution is: PIIX3 -> ICH9 !!!
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Re: High CPU using Windows 10 Version 1803 as host and guest
Changing the CPU type worked for me too! I had a constant 25% to 30% being used on the host with the guest idling at about 5%.
Settings -> System -> Chipset: ICH9
Host OS: Mac High Sierra 10.13.6
Guest: Windows 10
The guest has GA installed with 2D and 3D acceleration on in case this helps anyone else out there.
Settings -> System -> Chipset: ICH9
Host OS: Mac High Sierra 10.13.6
Guest: Windows 10
The guest has GA installed with 2D and 3D acceleration on in case this helps anyone else out there.
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Re: High CPU using Windows 10 Version 1803 as host and guest
Please do NOT use the ICH9 chipset, something that is:
- For OSX-guests only,
- Clearly labelled as experimental,
- Most probably going to create more problems down the line to other PCI peripherals, and
- Going to be the first thing that a developer, administrator, moderator or volunteer is going to tell you to change.
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Re: High CPU using Windows 10 Version 1803 as host and guest
PIIX3 chipset, WIn10 64 host & guest
1 CPU assigned - constant 25-30% CPU usage (I have 4t/8c CPU) on host
2 CPUs assigned - 0.7-63.6% depending on the load, but mostly idling
So instead of changing chipset to unsupported which is terrible idea just assign one core more
1 CPU assigned - constant 25-30% CPU usage (I have 4t/8c CPU) on host
2 CPUs assigned - 0.7-63.6% depending on the load, but mostly idling
So instead of changing chipset to unsupported which is terrible idea just assign one core more
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Re: High CPU using Windows 10 Version 1803 as host and guest
You can also start a paused VM, it's enough to lower the CPU usage of the first VM.
Re: High CPU using Windows 10 Version 1803 as host and guest
Hello everyone,
Just for information, I had exactly the same problem.
My host is running Windows 10 Pro 1809 and my guest too.
My CPU was always over 40% ...
After reading this topic, I decided to test the solution of the switch from Chipset parameter PIIX3 to ICH9 even if some people do not recommend it.
(A little fearful snapshot done beforehand.)
Result: All my problems are solved!
Well, that's just me.
Just for information, I had exactly the same problem.
My host is running Windows 10 Pro 1809 and my guest too.
My CPU was always over 40% ...
After reading this topic, I decided to test the solution of the switch from Chipset parameter PIIX3 to ICH9 even if some people do not recommend it.
(A little fearful snapshot done beforehand.)
Result: All my problems are solved!
Well, that's just me.
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Re: High CPU using Windows 10 Version 1803 as host and guest
PIIX3 -> ICH9, the right answer!
It cost me 2 full days. In a new computer, I use VB 6.0.0 and Windows 10 LTSC 2019 as guest. I try a few test, say, down-graded VB to version 5; down to win 10 LTSB 2016, etc
It cost me 2 full days. In a new computer, I use VB 6.0.0 and Windows 10 LTSC 2019 as guest. I try a few test, say, down-graded VB to version 5; down to win 10 LTSB 2016, etc
Re: High CPU using Windows 10 Version 1803 as host and guest
Hello.
The problem remained after upgrading the guest to v1809, but following the suggestion posted a few posts above, I was able to solve my problem by increasing the number of virtual CPU's from 1 to 2.
Host CPU draw went from 30% minimum to idling at 2% (and 65% maximum).
The problem remained after upgrading the guest to v1809, but following the suggestion posted a few posts above, I was able to solve my problem by increasing the number of virtual CPU's from 1 to 2.
Host CPU draw went from 30% minimum to idling at 2% (and 65% maximum).
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Re: High CPU using Windows 10 Version 1803 as host and guest
I too have encountered this problem (although with Windows 1809). It seems that there are 3 workarounds listed in this thread:
This dilemma raises the following questions
- Disable Drag and Drop - Already disabled on my system, so not useful for me.
- Ensure more than one virtual core always running - I only have two cores to begin with.
- Change PIX3 -> ICH9 - the moderator really hates this
This dilemma raises the following questions
- Has a formal Oracle problem ticket been generated for this issue? (For it clearly is a problem)
- Has the root cause been identified?
- Is it considered a VirtualBox bug, or is VIrtualBox just emulating something that a recent change in Win10 has made very CPU intensive to emulate? If the later, are there plans to improve the emulator performance?
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Re: High CPU using Windows 10 Version 1803 as host and guest
And here are my answers to your questions:cb20777 wrote:This dilemma raises the following questions
- This is just the query for "High CPU", you could think of a bunch of other similar queries: https://www.virtualbox.org/query?status ... r=priority
- Hardly. It's not reproducible easily, there's got to be something that triggers this, only that "something" seems to be elusive... I can't reproduce it for example.
- Can't tell without the previous point being clearly identified.
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Re: High CPU using Windows 10 Version 1803 as host and guest
The issue reported here is easily reproducible and refers to high CPU usage on the host, while the guest is idling.
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Re: High CPU using Windows 10 Version 1803 as host and guest
I'd love to reproduce it, honestly to $DEITY. Tell me how, seriously. I can't. I have a Win7-32, Win7-64 and Win10-64 host (one of each, same computer really), but it doesn't do anything like that for me.mhanor wrote:The issue reported here is easily reproducible
I can see the guest going crazy sometimes, but I know what's causing that; optimizations of .NET mostly when left idling. As soon as I get the focus on the VM, CPU drops.
But nothing that shows idle guest, 100% host.
And I don't think the title of the thread is "Idle guest, High CPU host" to begin with...
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