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Java on a 1000 Cores - Tales of Hardware / Software CoDesign

Google TechTalks · talk · Watch on YouTube

Compilers, interpreters & program analysisPython, Ruby & scripting languagesComputer architecture & CPUs

What it is

Cliff Click of Azul Systems gives a Google Tech Talk on running Java business applications on a machine with about a thousand cores. He covers hardware and software codesign, including garbage collection hardware and the JIT.

Why Hacker News recommends it

HN treats Cliff Click's talks as an excellent source on JVMs, garbage collection and hardware-assisted Java.

  • 5 people recommended it
  • 5 different months
  • 2 strong recommendations
  • first 2009, last 2025

What HN commenters said

  1. “Here's an excellent google tech talk by Cliff Click of Azul talking about their hardware.”

    Excellent talk by Cliff Click on Azul hardware and JIT versus bytecode CPUs.

    bokchoi, 2009-10 · Strong recommendation · in “JOP: A Tiny Java Processor Core for FPGA”

  2. “Anything from Cliff Click is quite good.”

    Cliff Click has deep understanding of compilers, VMs, and CPUs.

    qznc, 2013-04 · Strong recommendation · in “Ask HN: What's the best technical talk you've heard?”

  3. “Cliff Click from Azul has done some great Google Tech Talks about JVM development and scaling JVM's out to really big systems.”

    Cliff Click's great talks on JVM development and scaling.

    Alupis, 2015-03 · Recommendation · in “Peter Lawrey Describes Petabyte JVMs”

  4. “there is an interesting tech talk about it”

    Interesting talk on Azul's multicore Java hardware and JIT target.

    mcbridematt, 2020-07 · Recommendation · in “Java Optimized Processor (2005)”

  5. “Cliff Click gave an excellent talk on it”

    Cliff Click on Azul's hardware-assisted Java CPU with GC barriers

    hayley-patton, 2025-11 · Recommendation · in “Implementation of a Java Processor on a FPGA (2016)”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: java, garbage collection, azul, multicore, jit compilers

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