1. PTWRITE - write data to a processor trace packet.
https://hjlebbink.github.io/x86doc/html/PTWRITE.html
2. TCP westwood+ congestion control (2003).
https://tools.ietf.org/html/rfc3649
3. Processor tracing (2013).
https://software.intel.com/en-us/blogs/2013/09/18/processor-tracing
4. Juno ARM Development Platform SoC Technical Reference Manual (2014)
5. slub (2017).
https://www.kernel.org/doc/Documentation/vm/slub.txt