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Cake day: July 1st, 2023

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  • Had Japan not surrendered, we had another nuke en route (The demon core was around already, we just had to slap it into the mechanism), and could have had a fourth reasonably quickly. (We had processed a huge chunk of the fuel for the fourth pit before we dropped our first bomb) It was just after that where the US couldn’t just keep setting them off because the timescales to generate the plutonium was measured in several weeks.

    Last Podcast on the Left did a decent, though immensely gory, series on the Manhattan Project recently.


  • I’m expecting that JSON parsing is a huge overhead with the fediverse. I work on a SAAS that needs to do all its internal processing in under 10 ms, and serializing/deserializing ends up being a sizable chunk of server time. I saw a 40% reduction in runtime using simdjson for deserializing, and there exists a rust crate for it, but I haven’t had time to look the Lemmy code over.

    Can anyone with an overloaded instance get on their command line and gather a decent flamegraph so the performance folks can aim optimizations in the right direction?

    https://github.com/brendangregg/FlameGraph