Viewing profile — borodi

Fun fact, Julia's parser and part of its compiler are implemented in femtolisp, and you can access it using a not so secret option in the Julia CLI.

I havent tried Tsan with rr but msan and asan work quite well with it (it’s quite slow when doing this) but seeing the sanitizer trigger then following back what caused it to trigg…

Chaos mode is an option when invoking rr that can expose some concurrency issues. Basically it switches which thread is executing a bunch to try and simulate multiple cores executi…

There is, it's called count_ones. Though I wouldn't be surprised if LLVM could maybe optimize some of these loops into a popcnt, but I'm sure it would be brittle

So it was a bit more pervasive than this, the issue was that flushing subnormals (values very close to 0) to 0 is a register that gets set, so if a library is built with the fastma…

btw, there has been a pretty nice effort of reimplementing the tidyverse in julia with https://github.com/TidierOrg/Tidier.jl and it seems to be quite nice to work with, if you wer…

LLVMs API is the c++ one. The C one while more stable also doesn't support everything. Keeping up with LLVM is annoying but it's not the source of bugs or anything of the sort. PS(…

Julia follows semver, so code written in 1.0 should work on the latest release (packages notwithstanding)

It tries to show you the type information on the source itself, instead of on the IR.

I do believe this is an issue of not having explicit dependencies. Julia takes the approach of, we build and ship everything for every OS, which means Pkg (the package manager) kno…

Julia does have really nice GPU support, being able to directly compile julia code into CUDA, ROCm, Metal or other accelerators. (Being GPU code it's limited to a subset of the mai…

You can try and build your own toy language for fun, or try to compile lox to some assembly/llvm ir. Another option is to try and contribute to an existing language (Julia ;) ).

We used the chromium snapshot file format ( https://learn.microsoft.com/en-us/microsoft-edge/devtools-gu... ). If firefox uses the same format then it should work, but I haven't te…

I'm sure there are reasons for it, but Chris Lattner has been jumping around a bit. Remember swift4TF. But hopefully this one is seen through with lots of open source too.

One interesting thing is that if julia can prove what types a function will be called with at compile time, it doesn't have to do dynamic dispatch, so it has no overhead. It's what…

That's one of the cool things about Julia. If it can prove the types of the arguments to a function, or at least reduce them to a small set. It can do the dispatch at compile time.…

Veritasium has a recent video that goes into the algorithm a little bit. So does 3blue1brown. But basically anything that processes signals digitally will probably use the FFT some…

Julia has many of the features one expects of a lisp. But it has a more "normal" syntax

SemVer is very important for me. If the language has binary dependencies the package manager should also handle them. Depending on the system for them leads to hard to debug issues…

Pop has pipewire since 22.04 IIRC.

LDP(load 2 registers) was switched in place of LDM, it seems that instructions that could touch so many registers at once made out of order/superscalar harder. source: https://comm…

The group working on it, (Valentin, Tim Holy etc) agree with you, which is why we are tending to call it TTFX(time to first X) instead of TTFP, so it includes everything, not just …

--lisp mode just lands you in the REPL of femtolisp, which is used for the parser and lowererer. It's kind of an easter egg for sure.

The syntax sugar you are looking for "mutating" the immutable stricts is basically what Accessors.jl does. I don't really see a reason to bring it into Base Julia if it doesn't nee…

Yes and no. There are ways around that for development like https://github.com/BeastyBlacksmith/ProtoStructs.jl . But changing the definition of actual structs isn't very feasable …