Still over 100% CPU Usage . . . HELP

JohnH36 said:
There is ONE business application that I need to use Windows for - that is the reason I bought and installed Parallels and Windows 10 on my Mac. I had a 2016 12" MacBook Pro, and Parallels and Windows was devouring resources and running fans on high, so I upgraded hoping to stop this . . .
Current configuration:
New 16" MacBook Pro Mac OSX Catalina 10.15.3
2.3 Ghz 8 core i9
32GB Memory
2TB HD

Parallels Configuration options - upgraded to parallels 15.1.2
Processor allowance - 2 as per recommendation (although I had it set to 4 with no difference)
16 GB of Memory allocated within recommendation
Graphics memory is set to auto

The posting on the website says this could be caused by an "underpowered machine" and I thought perhaps that was the case, so therefore the new Mac, that by any stretch of the imagination is far from underpowered. So what else can I do?

Processor usage is still over 100% (between 105 and 150 percent) every time I boot up parallels and windows according to activity monitor, and fans rev up immediately to start cooling the processor.
Click to expand...
I have the Identical configuration - but with 1GB SSD :) landing in same issue - fans spin whenever i log to windows. I don't have much installed apps in windows 10, plain vanila. seems Parallels is becoming more power hungry without any reason.. planning to switch to Bootcamp and done with Parallels for now...

i don't need a VM for which one needs to be too techie to use and always switch between task managers to see what is cooking and kill, report, fix. It should work itself plain SIMPLE.
 
it is the prl_disp_service that consumes the 100%+++ CPU in MAC. Not WIndows. Troubleshooting Windows is of no use, the % CPU utilization of prl_disp_service needs to be addressed - even though all settings are as recommended, there is no relief.

Question to Parallel team - without disabling anything on MAC, or putting Parallels in Travel Mode - how do u disable usage of eGPU in parallels?
 
I have the same, latest Windows 10 pro, Mac 10.15.5 ja Parallers pro 15.1.4 (47270), very high CPU usage. CPU fan is running full speed.
I'm mainly using Office products (Outlook, Teams, Word, Excel).
Had this problem for a year at least so not related to latest Parallers, Mac or Windows versions.
Parallers settings are as recommended.
Macbook Pro 15 inch 2018, 6 core i9 CPU and 32Gb RAM. 1tb SSD.
 
I have this issue as well. 27" 5K iMac (2017), 4.2 GHz i7, 64GB RAM, 3.5TB Fusion drive. Parallels v15.1.4. Running Mojave v10.14.6.
 
KimmoK1 said:
I have the same, latest Windows 10 pro, Mac 10.15.5 ja Parallers pro 15.1.4 (47270), very high CPU usage. CPU fan is running full speed.
I'm mainly using Office products (Outlook, Teams, Word, Excel).
Had this problem for a year at least so not related to latest Parallers, Mac or Windows versions.
Parallers settings are as recommended.
Macbook Pro 15 inch 2018, 6 core i9 CPU and 32Gb RAM. 1tb SSD.
Click to expand...

and I was able to reduce CPU usage byt disabling "Access Windows folders from Mac". Saw postings about it and decided to try.
https://forum.parallels.com/threads/parallels-12-windows-10-high-cpu-usage.338758/
 
Is there any update to this subject? I have just reinstalled Parallels software yesterday, now my fan is going crazy, even if I have no applications running.
 
Updating Mac to Big Sur and Windows 10 version 2004 doesn't work. My is Macbook Pro 2018 with 6 Core i7, 32GB Ram.
 

Attachments

  • Screenshot 2020-07-10 at 4.43.20 PM.png
    Screenshot 2020-07-10 at 4.43.20 PM.png
    714.3 KB · Views: 15
I'm having the same problem - Windows 10 VM consumes 150% of mac cpu at idle and the fans are going crazy. PRL_DISP_SERVICE floats from 100% - 400%.
 
zquanghoangz said:
Below solution work for me:
Under Advanced settings make sure that 'Parallels' hypervisor is selected.
From this post https://kb.parallels.com/112091
Click to expand...
Just realize have another issue w that.
If I change to "Parallels" my laptop sound will be unstable and disappear, need to restart to get the sound back.
Last time I change to "Apple" to fix the sound issue.
So far need to choose one over the other.

Any parallels tech guys here can support on that?
Note that I'm using Parallels Desktop 16 still have issue.
 
zquanghoangz said:
Just realize have another issue w that.
If I change to "Parallels" my laptop sound will be unstable and disappear, need to restart to get the sound back.
Last time I change to "Apple" to fix the sound issue.
So far need to choose one over the other.

Any parallels tech guys here can support on that?
Note that I'm using Parallels Desktop 16 still have issue.
Click to expand...

I have been having issues with my sound with my Macbook pro for months now and Apple have not been able to identify why. Same as above, the only way to get it back is shut down mac and start again.. I too also have issues with my CPU and contant fan running.
 
I used to have the same problem with similar hardware than the original post; but now my cpu usage is around 10%-20% when idle, what I did was go to my Windows VM and turn off index services, the antivirus, and windows update service (after installing all pending updates). My guess is that Windows index and the antivirus were trying to analyze and index my whole Mac hard drive; since I only use the VM for development and I don't care about turning off those things.
 
I've had the same issue with Win10 + parallels12 and 13.
I got Window Server 2003 and It has no issue.
This should be fixed by now.
 
PeterR20 said:
I used to have the same problem with similar hardware than the original post; but now my cpu usage is around 10%-20% when idle, what I did was go to my Windows VM and turn off index services, the antivirus, and windows update service (after installing all pending updates). My guess is that Windows index and the antivirus were trying to analyze and index my whole Mac hard drive; since I only use the VM for development and I don't care about turning off those things.
Click to expand...
Could you please collect the tech report and post the report's ID here?
Please generate the tech report once issue reproduced please/
 
You must log in or register to reply here.
Back
Top