Adapted from "Mess" Steven Lilley, Creative CommonsKnowledge is messy. This is something that I have come to understand after doing support for a while. Knowledge is never complete, is ever changing, and we, here in support, are always on the hunt to capture knowledge wherever it can be found.
In regards to performance in AutoCAD, and especially in a vertical like Civil 3D, there are many, many factors that come into play (and I won't pretend to be the expert). Occasionally a customer will ask for a "performance checklist" for Civil 3D. In fact this was a request from a customer who I worked with last week.
There are some resources along these lines but often they tend to be exhaustive. So instead I decided to ask a few questions to narrow things down. After receiving the requested info, I shared some specific suggestions and awaited results from the customer.
Curtis, the customer, made a discovery that I want to share. I will just quote part of his response, in case this helps anyone who might describe their system as "slow and lagging" in connection with using Civil 3D 2015:
"we will need some more time to troubleshoot; however, it appears that a large factor in the speed was a background Windows backup process called "Shadow Copies" running on our network server. I don’t completely understand it because it is very strange that it affected the drawing speed even when they were copied locally (not on the network) and at times when the Shadow Copies were not running. However, I disabled Shadow Copies on the network server and the overall performance locally has improved significantly."
So for those of you who do maintain performance checklists, if you haven't done so already, you might want to add "Shadow Copies" to your list. Doing some searches on the web I see that lots more knowledge is available on this topic:
We are always happy when customers share their knowledge with us. Thanks Curtis!