Functional coverage option.per_instance

Coverage
1

I have written functional coverage code where I have used option.per_instance,
I ran the code with the following scenarios,

  1. option.per_instance=0
  2. option.per_instance=1
  3. Not used option.per_instance
    I am not able to make out any difference among the result of these scenarios and I am checking the result on my tool.
    Could you tell me how to check?
2

In reply to Vinutha K R:

It won’t make any difference if you only have one instance of the covergroup, or if you are collecting identical coverage for each instance.

3

You may also find the information in this article useful, in terms of how coverage options effect the coverage model:

4

In reply to dave_59:

Thank you

5

It won’t make any difference if you only have one instance of the covergroup, or if you are collecting identical coverage for each instance. [/quote]

If we have multiple instance of the covergroup, then will it effect coverage percentage?

6

In reply to LokeshBiradar:

Yes. per_instance = 1 is considered as different coverage instance.