MVC: Consider adding the duration of each job in the pipeline graph
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Release notes
Problem to solve
As a DevOps Engineer looking at a long running pipeline, I want to see which jobs run longest in a stage, so I can troubleshoot the likeliest problem so i'm not wasting time.
Proposal
We might put this in a tooltip on the Pipelines page
Or on the Pipeline detail page either on the stage view
or the Needs view
Technical Details
Original from this comment.
I looked at how we do it for pipelines and it seems that we persist the duration value in the pipelines table when there is a status change to one of the completed statuses: https://gitlab.com/gitlab-org/gitlab/-/blob/52b3971c88e8a405b2b247b0835829b8660465fd/app/models/ci/pipeline.rb#L204-211 I think we should do the same for stages.
The documentation for the code used to compute this duration is really nice: https://gitlab.com/gitlab-org/gitlab/-/blob/52b3971c88e8a405b2b247b0835829b8660465fd/lib/gitlab/ci/pipeline/duration.rb
Intended users
Metrics
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