Viewing profile — PeCaN

To be honest I don't really see people who don't want to learn APL being that interested in putting in the effort to completely upend how they think about programming and algorithm…

If you watch the video it looks like their proposed syntax is not APL-like but closer to mainstream languages. I'm honestly not sure if this is a good thing or not. You said "easie…

I've been working on something like this on and off for the past 4 years or so, although with something more like generators than streams. I think it's a very, very promising idea …

it's not so much that gcc does anything specific so much as LLVM is just really really inefficient—they don't track compilation time at all so it's easy for releases to regress, ha…

that's just because gcc has certain optimization passes that can't be disabled (that said gcc -O0 is still absolutely nothing like what a human would write)

- it takes some die space sure but no x86 processors are actually limited by instruction decoding (except, iirc, the first generation xeon phi in some cases) - huge pages don't exa…

All the Intel CPUs with RDRAND, although I guess that's not exactly hidden anymore.

I sort of wonder if this approach to JITing is worth it over just writing a faster interpreter. This is basically like what V8's baseline JIT used to be and they switched to an int…

That's fair. It's definitely not a killer, (or even in my opinion the worst thing about RISC-V,) just another one of these random little annoyances that I'm not really sure why RIS…

It's not like someone is proposing some crazy new instruction to do vector math on binary coded decimals while also calculating CRC32 values as a byproduct. It's conditional move. …

>[She] complains Risc-V need 4 instructions to do what x86_64 and arm does in two, but... it says Risc-V. So… what, it should take 5 instructions? Executing more instructions for a…

I'm not sure about this "RISC way" stuff. From a uarch standpoint the RISC vs CISC distinction is moot and from an ISA standpoint the only real quantifiable difference seems to be …

ARM has it. DEC Alpha had it (before x86, even). I get that there are a lot of narrow-use instructions but popcount is a pretty well-known and common operation.

popcount is extremely useful in a lot of algorithms, from RSA to chess engines to sparse arrays and tries it's honestly pretty baffling that RISC-V doesnt have it (perils of design…

Not that. https://en.wikipedia.org/wiki/Threaded_code It's an interpreter implementation technique.

Ironically enough I feel like IBM is actually an example of a giant company that, against all odds, is somehow still innovating, at least with its POWER CPUs. They're doing really …

how are europoors so consistently butthurt about fucking units of temperature

I considered multiple selections a bit of a gimmick in sublime text and various emacs/vim extensions but the way it works in kakoune feels completely different. Think about vim (an…

Humans were actually incapable of abstract thought until hacker news invented it.

Probably not, since it's optimized for scientific workloads (being designed specifically for the K computer replacement) (so it doesn't have texture units, ROPs, etc; you'd have to…

I thought I'd seen a rather dramatic benchmark of this but I can't find it now. (I think it was in the context of io_uring, whose documentation mentions that polled IO is much lowe…

I was extremely (I think justifiably) skeptical of async I/O on Linux for the longest time but now I legitimately think with io_uring Linux is actually somehow the gold standard fo…

While this is intuitively obvious, it doesn't really always play out that way in practice since interrupts can be expensive to handle. For example polled IO can be significantly lo…

I emailed QNX a couple years ago about hobbyist or non-commercial licenses and they replied that they no longer offer them.

You can find QNX 6.5 and suitable license keys by digging around on the web a bit. 6.5 is probably the last version suitable for use as a desktop OS—I believe 6.6 is where they sta…