Writing about software, AI systems, and the craft around them. https://joshbebbington.com/ en-gb Sun, 05 Apr 2026 00:00:00 +0000 https://joshbebbington.com/posts/demystifying-the-gvl https://joshbebbington.com/posts/demystifying-the-gvl Sun, 05 Apr 2026 00:00:00 +0000 I gave this talk in October 2025 at London Ruby User Group’s meetup: The Global VM Lock is one of Ruby’s more mysterious ‘under the hood’ features. This talk explores new ways to peer inside it, using Ruby’s modern... talks ruby gvl performance