Simon Willison’s Weblog

18th December 2017 - Link Blog

How do Ruby & Python profilers work? Julia Evans: “As a precursor to writing a Ruby profiler I wanted to do a survey of how existing Ruby & Python profilers work.”

Posted 18th December 2017 at 12:12 pm

Recent articles

The Pelican comparison grid for Astra is pretty interesting - 4th September 2026
OpenAI's rogue agents were caught communicating via public wikis - 4th September 2026
Claude's new system prompt really doesn't want to reproduce song lyrics - 2nd September 2026

This is a link post by Simon Willison, posted on 18th December 2017.

profiler 3 julia-evans 30

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