I had the pleasure to work with Dick on getting KUtrace to work on Android devices last year. It was a great experience to work with one of the greats in systems performance. He was a wealth of information regarding performance bottlenecks and optimizations.
KUtrace is absolutely one of the most powerful tools I've used for deeply understanding performance bottlenecks (after isolating issues) such as poor scheduling behavior. I would highly recommend reading his book "Understanding Software Dynamics" [1] if you are interested in learning more about KUtrace or performance bottlenecks/optimizations in general. The book is quite dense and dives deep into the performance characteristics of many examples of the five fundamental resources (according to Dick): CPU, Memory, Disk/SSD, Network, and Software critical sections.
KUtrace is absolutely one of the most powerful tools I've used for deeply understanding performance bottlenecks (after isolating issues) such as poor scheduling behavior. I would highly recommend reading his book "Understanding Software Dynamics" [1] if you are interested in learning more about KUtrace or performance bottlenecks/optimizations in general. The book is quite dense and dives deep into the performance characteristics of many examples of the five fundamental resources (according to Dick): CPU, Memory, Disk/SSD, Network, and Software critical sections.
[1]: https://www.oreilly.com/library/view/understanding-software-...