Comment 8 for bug 1366212

Fwiw, I tried parsing that leases file with MAAS's lease parser, and it took nearly 2 minutes on my laptop. The parser is, unfortunately, very very slow. In the medium term we need to come up with a different solution for lease parsing. In the short term I'm breaking the parsing out of the pserv process into its own process so that it doesn't hog the GIL.