On: Composer – Disable GC when computing deps and refs

[sillysaurus3]

As to why the problem went unnoticed for so long, it seems that the GC is not able to be observed by profilers, so whenever we looked at profiles to improve things we obviously did not spot the issue.

That sounds like a bug in the profiler, not with Composer. Observing internal time is pretty important for any profiler.

[Seldaek → sillysaurus3]

Yes it is definitely a failure of the tooling and I hear it is actually being worked on.