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Jean-Philippe Bempel @jpbempel.bsky.social
7,568 posts
@jpbempel

Jean-Philippe Bempel @jpbempel.bsky.social

@jpbempel
Sr Sw Eng @Datadoghq, optimize software running on JVM. Love performance topics and mechanical sympathy supporter. Java Champion & @javamissionctrl committer
Paris
jpbempel.github.io
Joined September 2010
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  • Pinned
    @jpbempel
    Jean-Philippe Bempel @jpbempel.bsky.social
    @jpbempel
    Dec 1, 2023
    New blog post: Chasing a Metaspace leak #OpenJDK #Metaspace #MemoryLeak #Instrumentation
    jpbempel.github.io
    Chasing a Metaspace leak
    Chasing a Metaspace leak
    1
  • @jpbempel
    Jean-Philippe Bempel @jpbempel.bsky.social
    @jpbempel
    Jul 21
    Grouping frequently called C2 nmethods in CodeCache github.com/openjdk/jdk/pu… included in jdk 27
    github.com
    8326205: Grouping frequently called C2 nmethods in CodeCache by chadrako · Pull Request #27858 ·...
    Summary This PR implements JDK-8326205, introducing experimental support for grouping hot code within the CodeCache. Problem Modern CPUs use the branch target buffer (BTB), part of the branch predi...
  • @jpbempel
    Jean-Philippe Bempel @jpbempel.bsky.social
    @jpbempel
    May 7
    Reggie - Hybrid Compile-Time and Runtime Optimized Regex for Java github.com/DataDog/java-r… from @BachorikJ
    Image
    GitHub - DataDog/java-reggie: A novel, bytecode generation based Java regular expression library
    From github.com
    1
  • @jpbempel
    Jean-Philippe Bempel @jpbempel.bsky.social
    @jpbempel
    Apr 3
    Eclipse OpenJ9 garbage collection policies and heap tuning for high-performance Java applications
    developer.ibm.com
    Eclipse OpenJ9 garbage collection policies and heap tuning for high-performance Java applications
    Discover how to optimize Eclipse OpenJ9 garbage collection policies, tune Java heap configurations, reduce pause times, and improve JVM performance for large-scale applications.
    1
  • @jpbempel
    Jean-Philippe Bempel @jpbempel.bsky.social
    @jpbempel
    May 14, 2025
    🇫🇷 Ma présentation "Comment debugger en production ?" à #DevoxxFR @devoxx.fr est dispo en video youtube.com/watch?v=GOmwxu…
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