midden - a fast JVM heap dump analyzer
Written in Rust, only takes fraction of the times of MAT, JProfiler or VisualVM. Guess I'll test this quite soon.
github.com/NullByte3/mi...
Written in Rust, only takes fraction of the times of MAT, JProfiler or VisualVM. Guess I'll test this quite soon.
github.com/NullByte3/mi...
GitHub - NullByte3/midden: Fast JVM heap dump analyser: retained sizes, owners and leak suspects from .hprof files. One static binary, no JDK needed.
Fast JVM heap dump analyser: retained sizes, owners and leak suspects from .hprof files. One static binary, no JDK needed. - NullByte3/midden
github.com
November 6, 2026 at 1:56 PM
midden - a fast JVM heap dump analyzer
Written in Rust, only takes fraction of the times of MAT, JProfiler or VisualVM. Guess I'll test this quite soon.
github.com/NullByte3/mi...
Written in Rust, only takes fraction of the times of MAT, JProfiler or VisualVM. Guess I'll test this quite soon.
github.com/NullByte3/mi...
2026年09月09日の更新情報: Metasequoia、Little Snitch、SABnzbd、WinScript、Motrix、Visual Studio Code、fish、VisualVM等が更新されました。
2026年09月09日の更新情報
Metasequoia、Little Snitch、SABnzbd、WinScript、Motrix、Visual Studio Code、fish、VisualVM等が更新されました。
softantenna.com
September 9, 2026 at 7:00 AM
2026年09月09日の更新情報: Metasequoia、Little Snitch、SABnzbd、WinScript、Motrix、Visual Studio Code、fish、VisualVM等が更新されました。
it only takes uhhhhhhhhh _six and a half gigs of memory oh no_
(I do not know why, I estimated...still a lot but way lower than this)
(I do not know why, I estimated...still a lot but way lower than this)
September 2, 2026 at 1:02 AM
it only takes uhhhhhhhhh _six and a half gigs of memory oh no_
(I do not know why, I estimated...still a lot but way lower than this)
(I do not know why, I estimated...still a lot but way lower than this)
[更新] VisualVM ver 2.2 → 2.21
オールインワンのJavaトラブルシューティングツール。
softantenna.com
February 16, 2026 at 5:47 AM
oh my god IntelliJ IDEA!
just start throwing an exeption if your RemoteMavenServer36 goes OutOfMemory instead of silently failing!!
wasted waaay too much time today here after forgetting that I had `rm -rf .idea`'ed my project
just start throwing an exeption if your RemoteMavenServer36 goes OutOfMemory instead of silently failing!!
wasted waaay too much time today here after forgetting that I had `rm -rf .idea`'ed my project
April 9, 2025 at 12:50 PM
oh my god IntelliJ IDEA!
just start throwing an exeption if your RemoteMavenServer36 goes OutOfMemory instead of silently failing!!
wasted waaay too much time today here after forgetting that I had `rm -rf .idea`'ed my project
just start throwing an exeption if your RemoteMavenServer36 goes OutOfMemory instead of silently failing!!
wasted waaay too much time today here after forgetting that I had `rm -rf .idea`'ed my project
Tantas perguntas, mas deixa eu apenas listar sucintamente: 1) JDK 21+? 2) Gen ZGC? 3) Shmem, THP, PreTouch? 4) Jemalloc ou um malloc otimizado? 5) Quantas threads? 6) -Xss1024k? 7) Custom thread pool? Acho que seriam as principais perguntas e pontos de investigação, além de JFR e VisualVM...
April 8, 2025 at 1:15 AM
Tantas perguntas, mas deixa eu apenas listar sucintamente: 1) JDK 21+? 2) Gen ZGC? 3) Shmem, THP, PreTouch? 4) Jemalloc ou um malloc otimizado? 5) Quantas threads? 6) -Xss1024k? 7) Custom thread pool? Acho que seriam as principais perguntas e pontos de investigação, além de JFR e VisualVM...
VisualVM (visualvm.github.io) can be a great help in performance tuning for JavaFX apps. Screenshot below shows the single-threaded JavaFX AppThread spends ca 2/3 of its time in "userspace" (Platform.runLater) and about 30% time in rendering (QuantumToolkit$$...).
November 29, 2024 at 9:25 AM
VisualVM (visualvm.github.io) can be a great help in performance tuning for JavaFX apps. Screenshot below shows the single-threaded JavaFX AppThread spends ca 2/3 of its time in "userspace" (Platform.runLater) and about 30% time in rendering (QuantumToolkit$$...).
🌟My newest blog post: A Guide To Java Profiling
Tips, recommendations, and an overview of popular Java profilers: bell-sw.com/blog/a-guide...
The video review is coming soon, stay tuned!
Tips, recommendations, and an overview of popular Java profilers: bell-sw.com/blog/a-guide...
The video review is coming soon, stay tuned!
Top Java Profiling Tools: Setup, Best Practices, and Comparisons
Discover Java profiling with JFR, VisualVM, Async Profiler, and more. Detailed setups and tips for production-ready applications.
bell-sw.com
November 15, 2024 at 10:53 AM
🌟My newest blog post: A Guide To Java Profiling
Tips, recommendations, and an overview of popular Java profilers: bell-sw.com/blog/a-guide...
The video review is coming soon, stay tuned!
Tips, recommendations, and an overview of popular Java profilers: bell-sw.com/blog/a-guide...
The video review is coming soon, stay tuned!
VisualVM is a fantastic tool for monitoring Java applications. https://visualvm.dev.java.net/ Also in Ubuntu: "visualvm"
February 14, 2025 at 7:34 AM
VisualVM is a fantastic tool for monitoring Java applications. https://visualvm.dev.java.net/ Also in Ubuntu: "visualvm"
Building Self-Healing Java Microservices: A Step-by-Step Guide
Transitioning from monolithic Java applications to microservices requires rethinking performance, fault tolerance, and scalability. Optimize JVM startup with GraalVM, use CompletableFuture for async flows, implement R…
#hackernews #news
Transitioning from monolithic Java applications to microservices requires rethinking performance, fault tolerance, and scalability. Optimize JVM startup with GraalVM, use CompletableFuture for async flows, implement R…
#hackernews #news
Building Self-Healing Java Microservices: A Step-by-Step Guide
Transitioning from monolithic Java applications to microservices requires rethinking performance, fault tolerance, and scalability. Optimize JVM startup with GraalVM, use CompletableFuture for async flows, implement Resilience4j circuit breakers, adopt event-driven communication with Spring Cloud Stream, maintain consistency with Saga patterns, and monitor memory with JFR and VisualVM for robust distributed systems.
hackernoon.com
March 28, 2026 at 11:32 PM
Building Self-Healing Java Microservices: A Step-by-Step Guide
Transitioning from monolithic Java applications to microservices requires rethinking performance, fault tolerance, and scalability. Optimize JVM startup with GraalVM, use CompletableFuture for async flows, implement R…
#hackernews #news
Transitioning from monolithic Java applications to microservices requires rethinking performance, fault tolerance, and scalability. Optimize JVM startup with GraalVM, use CompletableFuture for async flows, implement R…
#hackernews #news
hmm - here I thought flight recorder would be easier to use than visualvm but just realized jmc also isn't bundled with the JDK anymore. Bummer!
November 17, 2024 at 12:36 AM
hmm - here I thought flight recorder would be easier to use than visualvm but just realized jmc also isn't bundled with the JDK anymore. Bummer!
TFW when you realise you can just use visualvm to figure out why your little http://jbang.dev script suddenly uses all available memory....
The Java ecosystem is quite awesome!
Try do that with bash, python or even go :)
https://media.giphy.com/media/3ohzdIuqJoo8QdKlnW/giphy.gif
The Java ecosystem is quite awesome!
Try do that with bash, python or even go :)
https://media.giphy.com/media/3ohzdIuqJoo8QdKlnW/giphy.gif
JBang
Lets Students, Educators and Professional Developers create, edit and run self-contained source-only Java programs with unprecedented ease.
jbang.dev
November 17, 2024 at 12:36 AM
TFW when you realise you can just use visualvm to figure out why your little http://jbang.dev script suddenly uses all available memory....
The Java ecosystem is quite awesome!
Try do that with bash, python or even go :)
https://media.giphy.com/media/3ohzdIuqJoo8QdKlnW/giphy.gif
The Java ecosystem is quite awesome!
Try do that with bash, python or even go :)
https://media.giphy.com/media/3ohzdIuqJoo8QdKlnW/giphy.gif
I knew visualvm were nice, but did not know it is distributed since Java 6 update 4…run via jvisualvm (https://visualvm.dev.java.net/)
November 16, 2024 at 1:08 AM
I knew visualvm were nice, but did not know it is distributed since Java 6 update 4…run via jvisualvm (https://visualvm.dev.java.net/)
Feed: "Java Code Geeks"
By: Yatin Batra on Friday, December 19, 2025
By: Yatin Batra on Friday, December 19, 2025
Analyze Offline Java Heap Dumps
Java analyze offline heap dumps: Analyze Java offline heap dumps effectively using tools like VisualVM and Eclipse MAT for memory insights.
www.javacodegeeks.com
December 20, 2025 at 8:44 AM
Feed: "Java Code Geeks"
By: Yatin Batra on Friday, December 19, 2025
By: Yatin Batra on Friday, December 19, 2025
Using @visualvm JDBC profiler to improve SQL query performance on @kestra_io.
(both in English and French)
https://www.loicmathieu.fr/wordpress/informatique/le-profiler-sql-de-visualvm/
(both in English and French)
https://www.loicmathieu.fr/wordpress/informatique/le-profiler-sql-de-visualvm/
Le profiler SQL de VisualVM
www.loicmathieu.fr
November 26, 2024 at 12:01 PM
Using @visualvm JDBC profiler to improve SQL query performance on @kestra_io.
(both in English and French)
https://www.loicmathieu.fr/wordpress/informatique/le-profiler-sql-de-visualvm/
(both in English and French)
https://www.loicmathieu.fr/wordpress/informatique/le-profiler-sql-de-visualvm/
Yesterday I used @visualvm JDBC profiler for the first time and it's very nice: easy to use and straigth to the point!
In a few minutes I discover some index issues with the PostgreSQL database schema of @kestra_io and improve a lot flow execution times 😎
In a few minutes I discover some index issues with the PostgreSQL database schema of @kestra_io and improve a lot flow execution times 😎
November 26, 2024 at 12:00 PM
Yesterday I used @visualvm JDBC profiler for the first time and it's very nice: easy to use and straigth to the point!
In a few minutes I discover some index issues with the PostgreSQL database schema of @kestra_io and improve a lot flow execution times 😎
In a few minutes I discover some index issues with the PostgreSQL database schema of @kestra_io and improve a lot flow execution times 😎
Would that be with VisualVM? I'm curious!
October 21, 2025 at 7:50 AM
Would that be with VisualVM? I'm curious!
We get OutOfMemoryError: Compressed class space on our detekt stage in a big @Android project.
Me: Let's try at 1AM to reduce max-workers from 8 to 4, should only take a few minutes. Didn't work.
Also me: Let's open VisualVM and analyze the whole Gradle JVM memory until 4AM! 😱
Me: Let's try at 1AM to reduce max-workers from 8 to 4, should only take a few minutes. Didn't work.
Also me: Let's open VisualVM and analyze the whole Gradle JVM memory until 4AM! 😱
December 21, 2024 at 12:28 AM
We get OutOfMemoryError: Compressed class space on our detekt stage in a big @Android project.
Me: Let's try at 1AM to reduce max-workers from 8 to 4, should only take a few minutes. Didn't work.
Also me: Let's open VisualVM and analyze the whole Gradle JVM memory until 4AM! 😱
Me: Let's try at 1AM to reduce max-workers from 8 to 4, should only take a few minutes. Didn't work.
Also me: Let's open VisualVM and analyze the whole Gradle JVM memory until 4AM! 😱
2025年04月23日の更新情報: HWMonitor、VisualVM、Zed、Windows Package Manager preview、VSCodium、QEMU、Chrome 安定版、Windows Package Manager等が更新されました。
2025年04月23日の更新情報
HWMonitor、VisualVM、Zed、Windows Package Manager preview、VSCodium、QEMU、Chrome 安定版、Windows Package Manager等が更新されました。
softantenna.com
April 23, 2025 at 7:10 AM
2025年04月23日の更新情報: HWMonitor、VisualVM、Zed、Windows Package Manager preview、VSCodium、QEMU、Chrome 安定版、Windows Package Manager等が更新されました。
VisualVM is such a great tool for sharing these, also great during live demo's 👍
Also helps to explain virtual threads don't help you if you're already cpu-bound, unfortunately they're not a silver bullet. Victor Rentea covered it quite well in a recent @virtualjug.bsky.social
Also helps to explain virtual threads don't help you if you're already cpu-bound, unfortunately they're not a silver bullet. Victor Rentea covered it quite well in a recent @virtualjug.bsky.social
December 4, 2024 at 1:42 PM
VisualVM is such a great tool for sharing these, also great during live demo's 👍
Also helps to explain virtual threads don't help you if you're already cpu-bound, unfortunately they're not a silver bullet. Victor Rentea covered it quite well in a recent @virtualjug.bsky.social
Also helps to explain virtual threads don't help you if you're already cpu-bound, unfortunately they're not a silver bullet. Victor Rentea covered it quite well in a recent @virtualjug.bsky.social
Is your #Java app slower than it should be? @cat-edelveis.bsky.social breaks down how to profile it properly – from JFR and VisualVM to Async Profiler, YourKit, and more. Learn how to find what’s eating your CPU or memory: youtu.be/APvwi1SiFTw
October 13, 2025 at 12:57 PM
Is your #Java app slower than it should be? @cat-edelveis.bsky.social breaks down how to profile it properly – from JFR and VisualVM to Async Profiler, YourKit, and more. Learn how to find what’s eating your CPU or memory: youtu.be/APvwi1SiFTw
4. Como vc fez o profiling e monitoramento da aplicação??? profiling com VisualVM ou outra coisa??? Monitoramento com Grafana e Prometheus ou outra coisa???
É uma forma, eu usei ferramentas internas mas que o princípio pode ser o mesmo de uma visualVM, JFR e Prometheus.
É uma forma, eu usei ferramentas internas mas que o princípio pode ser o mesmo de uma visualVM, JFR e Prometheus.
June 5, 2025 at 6:42 PM
4. Como vc fez o profiling e monitoramento da aplicação??? profiling com VisualVM ou outra coisa??? Monitoramento com Grafana e Prometheus ou outra coisa???
É uma forma, eu usei ferramentas internas mas que o princípio pode ser o mesmo de uma visualVM, JFR e Prometheus.
É uma forma, eu usei ferramentas internas mas que o princípio pode ser o mesmo de uma visualVM, JFR e Prometheus.