Presentations

Talks, Slide Decks, Blog Posts, and other Presentations

There are many talks publicly available on the web that contribute to knowledge of HotSpot internals.  Here are some good ones.

Talks

• Christian Hagedorn (February 2021)
  New Test Framework with IR Verification
  Compiler Staff Meeting
• Tobias Hartmann (October 2019)
  Java - Quo Vadis?
  Voxxed Days, Lugano, Switzerland
• Roland Westrelin
  Loop Strip Mining in C2 (January 2018)
  Compiler Team Offsite, Santa Clara
• Igor Veresov
  AOT/Graal changes walkthrough (January 2018)
  Compiler Team Offsite, Santa Clara
• Igor Veresov and Vladimir Kozlov
  Ahead of Time Compilation (January 2018)
  Compiler Team Offsite, Santa Clara
• Vladimir Ivanov
  Project Panama - Status Update (January 2018)
  Compiler Team Offsite, Santa Clara
• Tobias Hartmann and Roland Westrelin
  State of the Values (January 2018)
  Compiler Team Offsite, Santa Clara
• Tobias Hartmann
  What´s Cool in Java 8, and New in Java 9 - From a VM engineer's perspective (April 2017)
  Oracle Code Berlin, Germany
• Tobias Hartmann, Zoltán Majó
  HotSpot VM Under the Hood (Feb 2016)
  Bucharest Technology Week, Romania
• Vladimir Ivanov
  State of java.lang.invoke Implementation in OpenJDK (August 2015), video
  Santa Clara, JVM Language Summit
• Tobias Hartmann
  Efficient Code Cache Management for Dynamic Multi-Tiered Compilation Systems (September 2014)
  PPPJ in Krakow, Poland
• Vladimir Kozlov
  Loop optimizations in HotSpot VM Server Compiler (October 2011)
  The C2 Register Allocator (March 2014, slides by Niclas Adlertz)
  Compiler Team Offsite, Santa Clara

Posts

• Vladimir Ivanov
  Invokedynamic: Deep Dive (Mar 2015)
  The most detailed available description of Method Handles and Invokedynamics in HotSpot
• Aleksey Shipilëv
  Black Magic of (Java) Method Dispatch (Feb 2015, updated 2016)
  Everything you wanted to know about Black Deviously Surreptitious Magic in low-level performance engineering.

Other sites

• Compiler and JVM Research at JKU
  Collaboration with Institute for System Software at JKU (since 2001) on dynamic compiler optimizations and JVM-related research topics.
• Aleksey Shipilëv: One Stop Page
  Blog and presentations on Java and the JVM implementation and performance.