[MacPorts] #63068: base: performance: operations slower in 2.7.x vs. 2.6.4: reclaim, rev-upgrade, clean

[MacPorts]

#63068: base: performance: operations slower in 2.7.x vs. 2.6.4: reclaim, rev-
upgrade, clean
----------------------+----------------------
  Reporter:  mascguy  |      Owner:  mascguy
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  base     |    Version:  2.7.1
Resolution:           |   Keywords:
      Port:           |
----------------------+----------------------

Comment (by mascguy):

 While I'm still working on generating profiler results, the following
 timings illustrate the problem. These were run in a macOS 10.12 VM, though
 the specific macOS release doesn't matter; they're consistent across
 versions.

 ||=Operation =||=Time: 2.6.4 =||=Time: 2.7.1 =||
 ||port reclaim|| 25.4 secs|| 50.2 secs||
 ||port clean --all installed|| 28.7 secs|| 54.1 secs||

 Interestingly enough, the processing time is nearly doubled for 2.7.x, vs.
 2.6.4.

 Is it possible we inadvertently made a change, which results in the
 various logic running twice for each operation?

-- 
Ticket URL: <https://trac.macports.org/ticket/63068#comment:3>
MacPorts <https://www.macports.org/>
Ports system for macOS