mongodb/mongo-hadoop — pull request #71 by sweetieSong (2013-07-21 19:37:17+00:00)
Title: Optimized BSONComparator's compare

Enron:
With MailPair: 62.53s
With old BSONComparator: 63.10s
With new BSONComparator: 62.98s

PageRank (79,737,450 records into 36,861,697 groups):
With old BSONComparator: 823779 milliseconds = 13.7296 minutes
With new BSONComparator: 614995 milliseconds = 10.24 minutes