Brendan Gregg

Brendan Gregg is a kernel and performance engineer at Netflix, known for his work in systems performance analysis. He previously worked at Sun Microsystems, Oracle Corporation, and Joyent.
Gregg was born in Newcastle, New South Wales and attended University of Newcastle, Australia. After working as a technical instructor for Sun Microsystems and later as a consultant, he was hired to join Sun's Fishworks team in San Francisco. In October, 2010, he left Oracle for a position as a Lead Performance Engineer at Joyent. In March, 2014, he became a Senior Performance Architect at Netflix.
Gregg is one of the leading experts on DTrace, creator of the "DTraceToolkit", and author of books on DTrace and systems performance. He is also the star of the "Shouting in the Data Center" viral video.
In November, 2013, he was awarded the LISA Outstanding Achievement Award "For contributions to the field of system administration, particularly groundbreaking work in systems performance analysis methodologies."
He now investigates and writes about Linux performance on his new blog.
Contributions.
Gregg has developed various methodologies for performance analysis, notably the USE Method methodology (short for "Utilization Saturation and Errors Method").
He has also created visualization types to aid performance analysis, including latency heat maps, utilization heat maps, subsecond offset heat maps, and flame graphs.