Projects::BuildsController#show is extremely slow
Description
A Build page (Projects::BuildsController#show) like https://gitlab.com/gitlab-org/gitlab-ce/builds/10273683
(this is just an example as this build has a small trace) is extremely slow when the trace of the build is large (> 100 kB).
Response time is about 2,500 ms on my development environment (MacBook Pro 2016) when the size of the trace is 1196000 bytes.
Proposal
Just refactor the relevant code.
Links / references
n/a
Expected labels
- ~performance
- ~CI