Simon Willison’s Weblog

2nd April 2009 - Link Blog

Heap Dump Analysis. Using jmap to dump the JVM’s memory to disk, then analysing it using the visualvm GUI tool.

Posted 2nd April 2009 at 10:34 am

Recent articles

One-shotting a Raccoon Heist game using Claude Fable 5 - 5th August 2026
New release of LLM adds support for reasoning traces, OpenAI Responses, server-side tools, and smarter logging - 4th August 2026
Stateless MCP has recaptured my interest (and inspired mcp-explorer and datasette-mcp) - 31st July 2026

This is a link post by Simon Willison, posted on 2nd April 2009.

dominic-mitchell 2 heapdump 1 java 91 jvm 4 memory 12 profiling 13 visualvm 1

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe