Performance – Inside.java

Performance

2025

ZGC - Paving the GC On-Ramp by Erik Österlund on July 10, 2025
Project Leyden's AOT - Shifting Java Startup into High Gear by Dan Heidinga on June 29, 2025
FFM vs. Unsafe. Safety (Sometimes) Has a Cost by Maurizio Cimadamore, Per-Ake Minborg on June 12, 2025
Java 24, Faster Than Ever by Per-Ake Minborg on May 17, 2025
Strings Just Got Faster by Per-Ake Minborg on May 1, 2025
New Write Barriers for G1 by Thomas Schatzl on April 2, 2025
Java 24 Release Notes Overview for Operations by Billy Korando on March 29, 2025
Performance Improvements in JDK 24 by Claes Redestad, Per-Ake Minborg on March 19, 2025
A Deep Dive into JVM Start-up by Billy Korando on January 28, 2025
Java Performance Update by Per-Ake Minborg on January 26, 2025
A Deep Dive into JVM Start Up by Billy Korando on January 9, 2025

2024

Java 24 Performance Improvements and Deprecations - Inside Java Newscast #82 by Nicolai Parlog on December 12, 2024
Java 24 Stops Pinning Virtual Threads (Almost) - Inside Java Newscast #80 by Nicolai Parlog on November 21, 2024
JEP targeted to JDK 24: 450: Compact Object Headers (Experimental) by Roman Kenke (guest) on November 16, 2024
A Sneak Peek at StableValue and SegmentMapper by Per-Ake Minborg on October 24, 2024
Advancing AI by Accelerating Java on Parallel Architectures by Poonam Parhar on October 23, 2024
Java Performance Update with Per-Ake Minborg - Live Q&A at Devoxx BE by Nicolai Parlog, Per-Ake Minborg on October 11, 2024
Integrity by Default #JVMLS by Ron Pressler on September 12, 2024
Best of Java Performance - Inside Java Newscast #75 by Ana-Maria Mihalceanu on August 29, 2024
Rethinking Java String Concatenation #JVMLS by Claes Redestad on August 19, 2024
Integrity by Default - Inside Java Newscast #73 by Nicolai Parlog on July 18, 2024
How to Build Custom Java Runtimes with Jlink by Billy Korando on June 21, 2024
Introduction to JDK Mission Control by Billy Korando on May 18, 2024
What's New in JMC 9? - Sip of Java by Billy Korando on April 21, 2024
Pruning Dead Exception Handlers by Jorn Vernee on March 25, 2024
JDK 22 G1/Parallel/Serial GC changes by Thomas Schatzl on February 9, 2024

2023

JDK 21: The GCs keep getting better by Stefan Johansson on December 14, 2023
Hazelcast Jet on Generational ZGC by Stefan Johansson on November 7, 2023
Reducing P99 Latencies with Generational ZGC by Stefan Johansson on October 21, 2023
Where the JVM is Entering the Era of AI Performance Tuning! by Ana-Maria Mihalceanu on October 12, 2023
Generational ZGC - Sip of Java by Billy Korando on October 9, 2023
With Java 21, Your Code Runs Even Faster but How is that Possible? by Per-Ake Minborg on October 6, 2023
JFR View Command - Sip of Java by Billy Korando on September 26, 2023
Java Records are "Trusted" and Consequently Faster by Per-Ake Minborg on September 15, 2023
Java 21 JVM and GC Improvements #RoadTo21 by Billy Korando on September 3, 2023
Java's Startup Booster: CDS by Billy Korando on July 11, 2023
Create a multi-platform container image with Java SE Subscription Enterprise Performance Pack by Albert Attard (guest) on June 12, 2023
A Glance At The Java Performance Toolbox by Ana-Maria Mihalceanu on May 16, 2023
Save 10-20% Memory With Compact Headers - Inside Java Newscast #48 by Nicolai Parlog on May 11, 2023
Write performant Java code with the Vector API - JEP Café 18 by José Paumard on March 14, 2023
The Holy Grail of Java Performance - Inside Java Newscast #43 by Nicolai Parlog on March 2, 2023
JDK 21 - Image Performance Improvements by Per-Ake Minborg on February 13, 2023
JDK 21 - Performance Improvements Revealed by Per-Ake Minborg on January 26, 2023

2022

GraalVM in OpenJDK and More JavaOne Announcements - Inside Java Newscast #36 by Nicolai Parlog on November 3, 2022
Pre-Allocated Methods for HashMap and HashSet - Sip of Java by Billy Korando on October 24, 2022
AppCDS Autogenerate - Sip of Java by Billy Korando on September 26, 2022
The Serial Garbage Collector - Sip of Java by Billy Korando on August 8, 2022
The Parallel Garbage Collector - Sip of Java by Billy Korando on August 1, 2022
Runtimes Updates Post-JDK 11 - Sip of Java by Billy Korando on May 16, 2022

2021

Client Applications Configuration with Oracle JDK 11+ by Poonam Parhar on December 15, 2021
String Concatenation - JEP Café #7 by José Paumard on December 9, 2021
GC progress from JDK 8 to JDK 17 by Stefan Johansson on November 24, 2021
Improving Java Performance on OCI Ampere A1 Compute instances by Stefan Johansson & Shiyou Huang (guest) on July 10, 2025
Faster Charset Encoding by Claes Redestad on October 17, 2021
G1: To Infinity and Beyond by Stefan Johansson on October 11, 2021
Large pages and Java by Stefan Johansson on May 19, 2021
Multi-Tier Compilation in GraalVM by Aleksandar Prokopec on April 19, 2021
Faster Charset Decoding by Claes Redestad on February 24, 2021
Reducing MD5 (and SHA) overheads by Claes Redestad on February 14, 2021
Extending the Automatic Vectorization Capabilities of the C2 Compiler by William Sjöblom (guest) on January 27, 2021
Investigating MD5 overheads by Claes Redestad on January 4, 2021

2020

Towards OpenJDK 17 by Claes Redestad on December 6, 2020
Zip lookups - a word from the sponsor by Claes Redestad on April 27, 2020
Improving G1 out-of-the-box performance by Stefan Johansson on April 16, 2020
Heap Archiving by Claes Redestad on February 7, 2020
G1: To infinity and beyond by Stefan Johansson on February 1, 2020

2019

OpenJDK Startup - Late 2019 Edition by Claes Redestad on November 20, 2019
GraalVM-Native Images: The Best Startup Solution for Your Applications by Christian Wimmer on September 19, 2019
Maximizing Performance with GraalVM by Thomas Wuerthinger on September 17, 2019
Updates on Class Initialization in GraalVM Native Image Generation by Christian Wimmer on September 12, 2019
Improving performance of GraalVM native images with profile-guided optimizations by Jaroslav Tulach on August 29, 2019
libgraal: GraalVM compiler as a precompiled GraalVM native image by on July 15, 2019
String concatenation, redux by Claes Redestad on May 14, 2019
cljinit woes by Claes Redestad on February 11, 2019
Processing Large Files in Java by Stuart Marks on January 11, 2019