It is like there is a bottleneck somewhere, but there is not sign of additional load anywhere and it was running flawlessly on Unraid 6.7.X and 6.8.X, the weird lag inside the VM, and same with the resource usage reported by task manager. I have tested while viewing the resource usage in Unraid and there is no correlation at all between changes in Unraid CPU usage or memory usage vs. I will come back and add more if the problem reappearsĮdit 2: The problem came back about a day later, it is intermittently lagging with occassional moments of perfect smooth performance. are all fairly low according that task manager and Process Lasso in Windows, and the CPU clock speed is at 4.8 GHz (checked using `grep MHz /proc/cpuinfo` in the unraid terminal).Įdit: After updating from 6.9.1 to 6.9.2, the problem seems to be fixed. It seems so weird that it would lag like that when the CPU usage, RAM usage, Disk usage, etc. It was running perfectly fine before the upgrade to Unraid 6.9.1, so that's the only thing I can think of that could have caused this. The CPU usage and RAM usage in task manager inside the Windows VM show low to medium usage, and the usage shown in Unraid is also equally low, and yet the Windows VM is super choppy and laggy even in things as simple of opening file explorer or simple web browsing. I have the same problem, but my CPU Scaling is set to Performance, so changing that didn't solve the problem. Perhaps these are false CPU percentage readings? Htop shows /usr/bin/qemu-system-x86_64 using greater than 100% of CPU. I created a cache pool for the first time during that upgrade I upgraded my cache drive a week before the 6.9 upgrade I had to perform the steps outlined here after the upgrade to 6.9 I do not pass though a GPU but I do pass through a USB card to "media" I rely on these VMs for my home business and I can't figure out how to get their performance back to 6.8. I've been using this instance of unraid since 2015 and it's been rock solid. Installation of Windows 10 was slow on "media2" and its performance is bad too. I created "media2" after the 6.9 upgrade to see if I could find any differences in the xml. The two VMs in question are called "hcp" and "media". Performance on these VMs was excellent in version 6.8.3, it was difficult to tell I was even using a VM through RDP. Also, performance inside the Windows VM is horrible (slow spinning logon animation, 30 seconds to open Windows explorer, generally sluggish). Just upgraded to 6.9 yesterday and noticed that the CPUs pinned to my Windows 10 VMs are pegged at 100%.
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