Parallels 13 macOS Sierra High Windows 10 slow performance

StanN, could you please open Windows Task Manager, sort processes by CPU usage in decreasing order and check what a process(es) eats CPU?
 
Hello,

I have the same problem. I use Parallels for development in Windows. Compilation of Mac files was much faster on Parallels 12 than Parallels 13. The above-mentioned tips for speeding up Windows 10 with this version of Parallels 13 do not help at all. We see something changed at the Windows and Mac boundaries of disk access. I have a MacBook Pro with 16GB of RAM and 4GB of memory on a graphics card, an SSD drive, and it makes no sense to me. Please correct this performance gap in Parallels 13! This problem was previously the reason why I did not choose VMWare and I choose Parralels 12. Now these reasons are gone, I am disappointed! :-(

Do you have any tip to solve this performance problem in Parallels 13?

Milan
 
Using Activity Monitor I get roughly 5% of CPU being used when waiting for a Windows file to open. Initially it may spike at something 40% but levels of below 5%.
 
Hello all, I am also seeing this issue since I upgraded to Parallels 13 when it came out about 2-3 weeks ago. I have been playing around with memory, CPU, video card settings with minimal impact.
  • Biggest complaint is the huge LAG in the response of the VM UI / Processing.
  • It can take 4-5 seconds between mouse click and screen response at times.
  • CPU % utilization does not climb more than 10-15%.
  • I am seeing high memory utilization on the Windows 10 VM (60%) System and Compressed memory.
  • Performance / LAG is worse in full screen mode with dual monitors.
  • Everything was fine with Parallels 12 and Sierra.
My Configuration:
  • 2013 MacBook Pro
  • 2.7 GHz Intel i7
  • 16 GB RAM
  • 512 GB SSD
  • NVIDIA GeForce GT 1GB
I am considering uninstalling Parallels 13 and re-installing Parallels 12. Please let me know if this is advisable with High Sierra. Let me know what other information you need.

I have also submitted my technical details: 233121873

Thanks,
Russ
 

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Restarting the VM brings the System and compressed memory usage down for a while, but then it builds back-up. I cleared the temporary files through the system clean-up control panel. Please let me know what else I can try.
 
Hello. I have performed a clean-boot, disabled start-up items and services and still have the same problem. Here is a description:

* VM Performance starts out ok.
* Once I open several applications (Excel, Visio, Outlook, Chrome) the VM begins to lag and gets slower over time (from 1 second lag to 3-5 second lag at its worst)
* I see memory usage consistently at 60% over time (Desktop Window Manager (674MB), System and Compressed Memory (260MB) are the top two.
* If I exit dual screen monitors the Desktop Window Manager goes down to 69MB.
 
I can confirm that the Desktop Window Manager process goes from about 40 MB to 400 MB when I go from single monitor to use all monitors configuration. I can also confirm that the VM lag virtually disappears when going back to a single display even with the same number of processes active. See screenshots.
 

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I am still having the slowness problems I described earlier in this forum. I have created a problem report and its ID is: 233964658
 
Hi all,

I had the same problem when starting the VM (Windows 10, all updates installed) on my High Sierra Mac. When unboxing the USB 3.0 toolbox (as described in #20) AND RESTARTING the WINDOWS VM and closing down Parallels, the problem was solved...

So my steps were:
Shut Down VM Windows 10
-> Go on Settings in the Control Center
-> go "Hardware"
-> Go USB/Bluetooth
-> go to "Advanced Settings" ("Erweiterte Einstellungen")

file.png

-> Uncheck USB 3.0 Support
-> Close Parallels
-> Open Parallels
-> Start VM (Windows 10)
-> wait for ages (about 6mins in my case) to start the VM
-> go to "Restart" in Windows
-> go to "Shut Down" in Windows
-> Close the VM
-> Close Parallels
and from now Parallels worked like always with me

Hope that helps

Felix
 
Thanks Felix,
nice community.
It works fine for me. @parallels please explain the bug.
And please stop the RAM lock... for normal versions. Thats not customer orientated at all!
 
Same problem here! Very frustrated!! :( I've been a customer for Parallels since version 6 (and then, 7, 8, 9, 10, 11, 12 and now 13)! I've a Macbook Pro 13' Mid 2010, 2,66Ghz Core Duo, 16GB RAM - Parallels only reads 8GB and SSD. I know it's quite old compared with what we can find these days. The issue is quite simple. I've upgraded from version 12 to version 13 and from Win7 to Win10. Basically my laptop just doesn't work anymore!!! :(
I did everything recommended here but nothing seems to work. Will try to install version 12 in another mac with the same specs and see what happens!
 
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