What is Server resource quota in SharePoint Online ?

From my understanding, Microsoft is using the "resources" word purposefully to be vague. It is a vague reference to memory and CPU time. My guess is that Microsoft didn't want to make any promises when it comes to CPU or memory, so we get "resources". Smart, and fairly humorous.

 

So, to answer your question, "resources" is the maximum amount of relative CPU and memory allocated to a site collection and or site collection group.

 

The actual CPU in MHertz and memory in MBs is unknown.

Hi,

 

You can refer the below article to understand what is server resource quota 

 

https://www.c-sharpcorner.com/UploadFile/93cb27/increase-the-server-resource-quota-for-site-collection-in-sh/