[6] His tools are included in multiple operating systems and products, and are in use by companies worldwide.

As a kernel engineer, he developed the ZFS L2ARC: A pioneering file system performance technology.

He has also developed and delivered professional training courses on computer performance.

His prior books were on Solaris performance and DTrace, and were published by Prentice Hall.

[9] US patent 8881279B2, Brendan D. Gregg, "Systems and methods for zone-based intrusion detection", issued 2014-11-04, assigned to Joyent, Inc.