DataDog/dd-agent — pull request #530 by josePhoenix (2013-06-04 19:36:43+00:00)
Title: Addressing issue #131 -- Add I/O metrics on Mac

Apple's version of iostat reports different metrics than Linux, FreeBSD, or SunOS. This adds three new metrics under system.io to log sectors per second (system.io.sectors), transfers per second (system.io.transfers), and milliseconds per seek (ms_per_seek).