[I'm the author] Spall is a web-accessible profiler that I made to help my web-dev friends load gigabyte+ JSON traces without lunch-break-long load times. Recently, Spall got experimental support for auto-tracing with binary traces (along with an in-progress native-port, to give it more memory headroom), which was used to help track down and fix some hard-to-spot lock contention issues in the Odin-language compiler.<p>I demoed it at the Handmade Seattle conference in October, <a href="https://guide.handmade-seattle.com/c/2022/spall/" rel="nofollow">https://guide.handmade-seattle.com/c/2022/spall/</a>, with a head-to-head against Perfetto, another big web profiler.<p>I'll be around to answer any questions. Thanks for looking at my project! If you like Spall, you can catch my other projects over at <a href="https://colrdavidson.github.io/" rel="nofollow">https://colrdavidson.github.io/</a>.<p>If you happen to be hiring I'd love to hear from you. Looking for something fun and new to do after a long sabbatical, working on cool open-source projects!