[MacPorts] #59481: Extremely low performance in GIMP (gimp2 @2.10.12_2 +quartz, macOS 10.14.6)

[MacPorts]

#59481: Extremely low performance in GIMP (gimp2 @2.10.12_2 +quartz, macOS 10.14.6)
-------------------------+----------------------
  Reporter:  i0ntempest  |      Owner:  mascguy
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.1
Resolution:              |   Keywords:
      Port:  gimp2       |
-------------------------+----------------------
Changes (by mascguy):

 * owner:  dbevans => mascguy
 * cc: mascguy (removed)
 * version:  2.6.2 => 2.7.1
 * status:  reopened => assigned


Comment:

 Yes, let's reopen; this issue still exists for me on 10.14 and 10.15 as
 well, despite upstream's patches.

 Sadly, I still can't create a working Big Sur VM, on my aging 2008-era
 MacPro. So I'll have to lean on yourself and others, to validate things in
 Big Sur. (And Monterey too, for that matter.)

 As for the issue: Given that we're using the correct upstream patches, my
 suspicion is that the macOS version being reported within GTK2 doesn't
 match with reality. Particularly given that the various fixes are only
 enabled, at runtime, via that version check.

 Still need to dig into this a bit more, with temporary debug output within
 GTK2, to diagnose further.

-- 
Ticket URL: <https://trac.macports.org/ticket/59481#comment:11>
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