puppetlabs/puppet — pull request #926 by daniel-pittman (2012-07-13 00:13:00+00:00)
Title: improve zaml performance by 400 percent

Even after other changes, ZAML performance was still a hot-spot in my testing of a real world catalog.

With some effort we can deliver a 400 percent improvement, dropping from ~ 4.1 seconds to ~ 1 second in my test.

This should stay steady, or improve further, as the size of the catalog grows.