jenkinsci/throttle-concurrent-builds-plugin — pull request #7 by marco-miller (2013-09-18 18:22:02+00:00)
Title: Categories optionally configured with pairs of throttled node labels.

JENKINS-19645
Pairs make each maximum applicable to nodes with matching labels only.
-Achieved by adding such Maximum Per Labeled Node pairs to categories.
Category's Maximum Concurrent Builds Per Node is superseded if matching.