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Hot Code is Faster Code - Addressing JVM Warm-up

Posted by Mark Price  on  Apr 23, 2016

Mark Price explores the life cycle of Java code, and how the JVM evolves the runtime representation of code during program execution, providing tips to make sure Java code runs fast.


Understanding HotSpot JVM Performance with JITWatch

Posted by Chris Newland  on  Apr 15, 2016

Chris Newland discusses performance-boosting techniques used by the JVM’s JIT and introduces JITWatch, a tool helping to get the best JVM performance for a code.


Life of a Twitter JVM Engineer

Posted by Tony Printezis  on  Apr 10, 2016

Tony Printezis presents how services are deployed and monitored at Twitter, the benefits of using a custom-built JVM, and the challenges of the use of the JVM in an environment like Twitter.


Node4J: Running Node.js in a JavaWorld

Posted by Ian Bull  on  Apr 02, 2016

Ian Bull introduces Node4J and explores the performance characteristics and highlights the tools that help one develop, debug and deploy Node.JS applications running directly on the JVM.


What It Means to be Just In Time

Posted by Ashley Puls  on  Mar 03, 2016 1

Ashley Puls explains what happens to bytecode inside the JVM. It begins with an overview of the Just In Time (JIT) compiler and discusses JIT optimizations such as method inlining and loop unrolling.


Explorations of the Three Legged Performance Stool

Posted by Charlie Hunt  on  Feb 11, 2016

Charlie Hunt explains the three performance attributes of throughput, latency and (memory) footprint and how each of these are influenced in terms of JVM garbage collection.


Netty @Apple: Large Scale Deployment/Connectivity

Posted by Norman Maurer  on  Jan 06, 2016

Norman Maurer presents how Apple uses Netty for its Java based services and the challenges of doing so, including how they enhanced performance by participating in the Netty open source community.


DIY Monitoring: Build Your Own JVM Performance Management Tool

Posted by Tal Weiss  on  Dec 17, 2015

Tal Weiss shows how you can easily write your own JVM agent to capture accurate performance data for virtually any type of application from Java microservices to reactive actor systems in Scala.


Building and Tuning High Performance Java Platforms

Posted by Emad Benjamin  on  Nov 08, 2015

Emad Benjamin covers various GC tuning techniques and how to best build platform engineered systems; in particular the focus is on tuning large scale JVM deployments.


Concurrency Options on the JVM

Posted by Jessica Kerr  on  Oct 17, 2015 2

Jessica Kerr covers some of the concurrency tools existing in JVM languages including ExecutorService, Futures, Akka actors, and core.async coroutines, providing advice on writing deadlock-free code.


Designing Secure Services with Unikernels: a Tough Nut to Crack

Posted by Anil Madhavapeddy  on  Aug 09, 2015

Anil Madhavapeddy describes how to design and build "deploy-and-forget" cloud services that are specialized into unikernels, single-address space virtual machines.


JVM Optimization 101

Posted by Sebastian Zarnekow  on  Jul 31, 2015 1

Sebastian Zarnekow discusses JVM internal optimizations, presenting how the JVM sees through code to apply techniques like inlining, loop unrolling and escape analysis at runtime.

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