Top all-time · #18489
Brice Dutheil
Personal blog · blog.arkey.frprogrammingsystems
Brice Dutheil's personal blog at blog.arkey.fr covers programming and systems. Since 2020, 4 different Hacker News readers have linked it 5 times, most often “Off-Heap Memory Reconnaissance”. It is still writing: the last post was on 2026-02-08, and you can follow it by feed.
Too few sampled comments (2) to say how often HN recommends it.?
Why HN links it
Brice Dutheil's blog posts cover native memory and allocators, including a jemalloc postmortem and tracking Java native memory with JDK Flight Recorder. HN readers link them in memory-related threads.
Summarised by Claude from a sample of 2 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Java mostly, and general tech
Most-linked posts?
- Off-Heap Memory Reconnaissance2 people · 2 mentions · first linked 2022-12-25
- Using JDK FlightRecorder and JDK Mission Control2 people · 2 mentions · first linked 2020-07-26
What Hacker News says?
glibc will return memory to the OS just fine, the problem is that its arena design is extremely prone to fragmentation, so you end up with a bunch of arenas which are almost but not quite empty and can't be released, but can’t really be used either. In fact, Jason himself (the author of jemalloc and TFA) posted an article on glibc malloc fragmentation 15 years ago: https://web.archive.org/web/20160417080412/http://w…
Comment linking /drafts/2021/01/22/native-memory-fragmentation-with-glibc/
on “Jemalloc Postmortem”Submitted Using JDK FlightRecorder and JDK Mission Control as a story · 3 points
HN discussionHere's some more NMT usage without flight recorder: https://blog.arkey.fr/2020/11/30/off-heap-reconnaissance/
Comment linking /2020/11/30/off-heap-reconnaissance/
on “Tracking Java Native Memory with JDK Flight Recorder”Submitted Using JDK FlightRecorder and JDK Mission Control as a story · 3 points
HN discussionSubmitted Off-Heap Memory Reconnaissance as a story · 2 points
HN discussion
