[MacPorts] #69781: portindex: multi-threading appears bottlenecked for 10.13, 10.12, and perhaps earlier

[MacPorts]

#69781: portindex: multi-threading appears bottlenecked for 10.13, 10.12, and
perhaps earlier
------------------------+--------------------
  Reporter:  mascguy    |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  base       |    Version:  2.9.3
Resolution:             |   Keywords:
      Port:  portindex  |
------------------------+--------------------

Comment (by jmroot):

 If you want to just time how long different sections of code are taking to
 execute, you can do something like this:
 {{{#!tcl
 # init:
 set section somename
 set firsttime [clock microseconds]
 set prevtime [clock microseconds]
 # between each section:
 puts "section $section took [expr {[clock microseconds] - $prevtime}] µs"
 set section anothername
 set prevtime [clock microseconds]
 # end:
 puts "total took [expr {[clock microseconds] - $firsttime}] µs"
 }}}

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Ticket URL: <https://trac.macports.org/ticket/69781#comment:3>
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