According to:

https://firefox-source-docs.mozilla.org/devtools/tests/performance-tests.html#how-to-get-performance-profiles-on-try

How to get performance profiles on try?

Once you have a successful try job for damp:
select this job in treeherder
click on the ... menu in the bottom left
select “Create Gecko Profile”
PerfHerder Create Gecko Profile menu
This should start a new damp job called damp-p. Once damp-p is finished:
select the damp-p job
click on Job Details tab
click on open in Firefox Profiler

This should be discoverable and usable without having to read the docs. I believe this will require changes to the Treeherder interface.

Also, it's not clear after checking "Create Gecko Profile" what will happen. We should give the user an expectation that the "damp-p" job will be created.

Here is a link to a damp run, with an example profile: https://treeherder.mozilla.org/#/jobs?repo=try&group_state=expanded&revision=b9afd492797dbe5456fd7a46d359bb4f00be2417

Here is a link to a profile from that run: https://profiler.firefox.com/from-url/https%3A%2F%2Ffirefox-ci-tc.services.mozilla.com%2Fapi%2Fqueue%2Fv1%2Ftask%2FHROGCn1VTzayD33Bd0b4eA%2Fruns%2F0%2Fartifacts%2Fpublic%2Ftest_info%2Fprofile_damp.zip/calltree/?v=5

I'm not sure how long that link will live, but it will probably be easy to find another one by looking through the try pushes of a frequent DAMP user, such as this one: https://treeherder.mozilla.org/#/jobs?repo=try&group_state=expanded&author=apoirot%40mozilla.com

A pull request is open for this: https://github.com/mozilla/treeherder/pull/6788

This was fixed in https://github.com/mozilla/treeherder/pull/6788