Ionut Balosin

Performance

HotSpot JVM Performance Tuning Guidelines

7th January 202024th November 2020Ionut Balosin

HotSpot JVM Performance Tuning Guidelines Content Intro Memory Heap Off-Heap Metaspace CodeCache Direct Buffers ClassLoader Dynamic Class-Data Sharing Just-In-Time Compiler Tiered Mode: C1+C2 Graal JIT Threads Garbage Collectors Serial Garbage…Continue readingHotSpot JVM Performance Tuning Guidelines

Soft Skills

The inner workings of technical conferences

22nd December 2019Ionut Balosin

Introduction In this blog post, David Leitner and I want to give you an insight, based on our experience from the past years of speaking at international conferences (e.g. more…Continue readingThe inner workings of technical conferences

Performance

JVM Garbage Collectors Benchmarks Report 19.12

14th December 201917th December 2019Ionut Balosin

Context The current article describes a series of Java Virtual Machine (JVM) Garbage Collectors (GC) micro-benchmarks and their results, using a different set of patterns. For the current issue, I…Continue readingJVM Garbage Collectors Benchmarks Report 19.12

Architecture

When do we need an architect

5th December 2019Ionut Balosin

Key takeaways the methodology, whatever that is (e.g. SCRUM, SAFE, etc) should not impose the necessity of having an architect in the team, but rather the real project needs. in…Continue readingWhen do we need an architect

Performance

Logging patterns and their performance impact

21st November 201914th December 2019Ionut Balosin

Motivation In the current post, I would like to explore different logging patterns and to identify which one is more efficient in terms of performance. Since logging is spread across…Continue readingLogging patterns and their performance impact

Performance

JVM JIT Compilers Benchmarks Report 19.11

6th November 201914th December 2019Ionut Balosin

Context and Motivation The current article describes a series of Java Virtual Machine (JVM) Just In Time (JIT) Compilers micro-benchmarks and their results, relying on different optimization patterns or intrinsics support.…Continue readingJVM JIT Compilers Benchmarks Report 19.11

Architecture, Soft Skills

The Agile Manifesto: A Software Architect’s Perspective

12th October 201927th December 2019Ionut Balosin

According to the licensing policy, I would like to mention this article was originally published on InfoQ. Key Takeaways While the role and responsibilities of a software architect can be seen…Continue readingThe Agile Manifesto: A Software Architect’s Perspective

Performance

JVM JIT Compilers Benchmarks Report 19.04

8th April 20194th November 2019Ionut Balosin

Context and Motivation The current article describes a series of Java Virtual Machine (JVM) Just In Time (JIT) Compilers benchmarks and their results, relying on different optimization patterns. For the current…Continue readingJVM JIT Compilers Benchmarks Report 19.04

Performance

Kotlin explicit inlining at megamorphic call-sites pays off in performance

11th March 20197th April 2019Ionut Balosin

Motivation In the current post, I would like to investigate how megamorphic call-sites are optimized in Kotlin as a result of explicit inlining (using the explicit inline modifier) and what is…Continue readingKotlin explicit inlining at megamorphic call-sites pays off in performance

Performance

Chaining lambda optimizations in HotSpot VM and GraalVM

24th February 201925th February 2019Ionut Balosin

Motivation Current post tackles the problem of chaining (or linking) multiple lambda calls which seem to be differently optimized by the HotSpot Just In Time Compiler C2 (i.e. JIT…Continue readingChaining lambda optimizations in HotSpot VM and GraalVM

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