Viewing profile — bencyoung

Unless your memory allocator runs a form of garbage collection, which most of the advanced ones do! Worst memory performance issue I've ever seen was in a C++ program where the dea…

Sounds like the Chronophage clock in Cambridge: https://en.wikipedia.org/wiki/Corpus_Clock . It it's purely mechanical but has odd pauses in the ticks etc

Sorry for the delay! It's fairly simple. 1. You have a column on your objects you want secured as an LTREE[] 2. You add a GIST index on that column The values should be the differe…

Sorry for the delay! It's fairly simple. 1. You have a column on your objects you want secured as an LTREE[] 2. You add a GIST index on that column The values should be the differe…

If you're using Postgres then using the ltree module is great for permission systems. Available in RDS too

Not majorly odd, just an area I thought Rust would be hot on when it comes to performance...

Having worked in HPC a fair bit I'm not a fan of autovectorization. I prefer the compiled code's performance to be "unsuprising" based on the source and to use vectors etc where I …

Odd that c# has a better stable SIMD story than Rust! It has both generic vector types across a range of sizes and a good set of intrinsics across most of the common instruction se…

Cheapest MSK cluster is $100 a month and can easily run a dev/uat cluster with thousands of messages a second. They go up from there but we've made a lot of use of these and they a…

Kafka is great tech, never sure why people have an issue with it. Would I use it all the time? No, but where it's useful, it's really useful, and opens up whole patterns that are h…

JIT compilation can be faster for compiled languages too, as it allows data driven inlining and devirtualization, as well as "effective constant" propogation and runtime architectu…

I think this is exactly the same approach PyPy used 15 or so years ago! Partially evaluate the language runtime

I almost did a PhD with David but ended up working at Transversal instead, which was a company he co-founded to do some interesting work in the search engine space! It's what got m…

The Fens in East Anglia in the UK has a lot of interesting pumping tech. The latest can do 100m3/s ( https://www.edie.net/st-germans-pumping-station-keeps-fens-f... ). If all the p…

I think it's more that western cultural cliches become invisible to western audiences rather than moving on. E.g. the "superhero" is definitely a western cliche. "A lone operative …

Dotnet is getting a fully interpreted mode in 10 or 11 so I wonder if they'll switch to that for things like this https://github.com/dotnet/runtime/issues/112748

We have https://www.myenergi.com/ for our car charger and it seems to be able to integrate batteries, charging and panels like you suggest, only you have to go all in. We have part…

Ok I drilled down a bit and looks like you are right, although I'm still not sure I've built up a clear understanding! ( https://physics.stackexchange.com/questions/187917/thought-…

Seems amazing similar to the changes a junior would make (jump to the solution that "fixes" it in the most shallow way) at the moment

Thanks! Hmm, I think we're talking about slightly different things but it's been too long since I studied it to put it in the right words :) I completely agree that spacetime can b…

Some example PRs if people want to look: https://github.com/dotnet/runtime/pull/115733 https://github.com/dotnet/runtime/pull/115732 https://github.com/dotnet/runtime/pull/115762

Apart from my MSci in Physics... Perhaps you could post some links to the spacetime diagrams you are talking about?

Well, I disagree. Light literally can't move in a direction that makes it further from the singularity once inside the event horizon. I don't see what space being flat or not local…

You can do plenty of experiments to see if you are falling, e.g. hitting the surface of a planet you are falling towards. The event horizon is a surface like any other with a locat…

Consider that every "surface" inside the event horizon is like a stronger event horizon so passing through you'd certainly notice things like not being able to see your feet any mo…