#20832 Troubleshooting a (very) slow pex build New discussion created by jake-normal I'm troubleshooting a PEX performance issue. The following build step is taking about 15 minutes in our Github Actions-based CI runner:

Building 34 requirements for requirements.pex from the 3rdparty/python/default.lock resolve: ...

My guess is that there is a dependency without a wheel matching our CI environment, but I'm having trouble figuring out 1) if that is the issue and 2) if so, which dependency it is. To start, I've been looking to produce more verbose output. (Nothing is emitted during the entire 15 minute build.) I tried

PEX_VERBOSE=100 pants --level=debug --no-pantsd

, but that didn't quite do it. @lilatomic pointed me at this option, but that didn't do it either. I can't tell if the issue is within pants or pex. I tried grepping for

Buildint .* requirements for .*

in both repos, but didn't come up with anything promising. Any suggestions? It would be nice if there was more output during that build process. pantsbuild/pants