Saturday, September 15, 2018

High CPU Utilization on idle KVM Windows Guest

 so noticed that my windows 10 kvm guest (running on unraid) was chewing up a cpu core.

the cpu utilization seemed to die down after i logged into the vm.

i logged out of the vm and waited 15 mins and did a htop and watched that VM’s utilization.

it seems that it would not drop below 25% which i thought was weird considering the VM was idle.

i turned off all the applications/services that were not running but that did not change a thing.

after doing some googling for a while i came across a post on the proxmox support forums about this exact issue.

they suggested adding these into my config

<clock offset=’localtime’>

<timer name=’rtc’ tickpolicy=’catchup’/>

<timer name=’pit’ tickpolicy=’delay’/>

<timer name=’hpet’ present=’yes’/>

<timer name=’hypervclock’ present=’yes’/>


after adding the above settings i noticed that the vm is now idling under 8%

now its not as low as i wanted it but considering there is an antivirus scanner on the machine and i am doing snmp polls to the guest every 5 mins i think under 8% is great,considering it started out at 25-30%.


Wednesday, September 5, 2018

USB Drive Letter Manager

 do you want to keep the same drive letter for more than 1 usb device ? well this program is for you..

USBDLM is a Windows service that gives control over Windows’ drive letter assignment for USB drives. Running as service makes it independent of the logged on user’s privileges, so there is no need to give the users the privilege to change drive letters.
It automatically solves conflicts between USB drives and network or subst drives of the currently logged on user.
Furthermore you can define new default letters for USB drives and much more.
It works on Windows XP to Windows 10.

check out this awesome program here

Re-add existing datastore for PBS

 this is how you re-add an existing datastore for Proxmox backup server (PBS) vim /etc/proxmox-backup/datastore.cfg add the datastore like s...