Mark J. Ray
Contributor
Mark J. Ray has been working with AIX for more than 20 years, 18 of which have been spent in performance. His mission is to make the diagnosis and remediation of the most difficult and complex performance issues easy to understand and implement.
Of Dials and Switches: An Introduction to Tuning the AIX Kernel
July 1, 2018
The kernel is the heart of any operating system. A major function of this core code is to provide access to the hardware on which it runs.
ArticlesTrapping the Elusive Error with AIX Kernel Tracing
April 1, 2018
Spotting error conditions requires time spent intensively studying your own AIX environment.
ArticlesThe Art and Science of AIX Performance: Intuition and Instinct
March 1, 2018
An article series dedicated to AIX and the methodology of attacking and resolving performance problems.
ArticlesThe Art and Science of AIX Performance: The System Monitors
February 1, 2018
An article series dedicated to AIX and the methodology of attacking and resolving performance problems.
ArticlesThe Art and Science of AIX Performance: The Stats Utilities
January 1, 2018
An article series dedicated to AIX and the methodology of attacking and resolving performance problems.
ArticlesThe Art and Science of AIX Performance: Configuration and Logs
November 6, 2017
Once you've compiled a detailed history of system performance issues, the next step is to brush up on the finer points of your AIX system configurations.
ArticlesThe Art and Science of Performance: Firmware, History and More
October 18, 2017
Performance tuning is the greatest art in computer management. How to get peak performance out of your existing AIX systems. Part 1 of 4.
ArticlesEvil Twins: 10 Network Tunables Every Admin Must Understand
September 20, 2017
Setting network tunables incorrectly on AIX systems is a very common problem. Nearly every tunable, be it CPU, memory, networking or storage, affects others to some degree.
ArticlesAIO: The Fast Path to Great Performance
July 19, 2017
Asynchronous input and output (AIO) is an essential performance feature of AIX. Without it, our world would be a much slower place.
ArticlesUnderstanding and Tuning CPU Throughput
June 14, 2017
Few topics related to AIX performance analysis and tuning are more misunderstood than CPU throughput: how databases, applications, middleware and utilities use CPUs in an IBM Power Systems environment. What follows is a basic primer on determining CPU throughput and usage in your AIX systems. By combining this knowledge with performance statistics, you can tune […]