[MacPorts] #56273: buildbot: Prioritize builders

[MacPorts]

#56273: buildbot: Prioritize builders
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  Reporter:  raimue         |      Owner:  admin@…
      Type:  enhancement    |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  buildbot/mpbb  |    Version:
Resolution:                 |   Keywords:
      Port:                 |
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Comment (by ryandesign):

 This ticket was prompted by a commit that modified a few hundred python
 ports, which due to the number of subports triggered up to a thousand
 builds per worker. Josh found that we were setting `cachedbuildrequests`
 to 1000 in the buildbot master.cfg; the total number of build requests
 exceeded this number. I
 [changeset:41b6403cfb869836c2906350805252aeb60952f7/macports-
 infrastructure increased it to 20,000] after which it seems to be much
 happier and builds are now happening on all queues.

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Ticket URL: <https://trac.macports.org/ticket/56273#comment:1>
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