DTS code coverage question

DTS code coverage question

[Lincoln Lavoie]

Hello All,

We have a patch into the 26.07 release that will enable generating
code coverage reports when DTS is run. The community lab can then
generate coverage reports, like we do for unit testing
(https://lab.dpdk.org/results/dashboard/code-coverage).

The question is, with DTS, tests can run on combinations of NICs, etc.
So how should those be factored into the reporting.  We can do 1 of
the following:

Option 1: Collect coverage reports per NIC / PMD
Option 2: Aggregate (combine) reports from multiple NICs / PMDs into a
single report
Option 3: Only run it on one NIC / PMD, assuming specific PMDs don't
change the coverage much.

Is there a specific direction the community would prefer?

Cheers,
Lincoln
-- 
Lincoln Lavoie
Principal Engineer, Broadband Technologies
21 Madbury Rd., Ste. 100, Durham, NH 03824
lylavoie@iol.unh.edu
https://www.iol.unh.edu
+1-603-674-2755 (m)

Re: DTS code coverage question

[Thomas Monjalon]

Hello,

11/06/2026 16:29, Lincoln Lavoie:
> Hello All,
> 
> We have a patch into the 26.07 release that will enable generating
> code coverage reports when DTS is run. The community lab can then
> generate coverage reports, like we do for unit testing
> (https://lab.dpdk.org/results/dashboard/code-coverage).
> 
> The question is, with DTS, tests can run on combinations of NICs, etc.
> So how should those be factored into the reporting.  We can do 1 of
> the following:
> 
> Option 1: Collect coverage reports per NIC / PMD
> Option 2: Aggregate (combine) reports from multiple NICs / PMDs into a
> single report
> Option 3: Only run it on one NIC / PMD, assuming specific PMDs don't
> change the coverage much.
> 
> Is there a specific direction the community would prefer?

As discussed today in the techboard meeting,
we have limited number of NICs in the lab at the moment,
so it's probably better to start small
and focus on the libraries coverage.
If some NICs help to cover more library features, let's combine them.