gct

Never forget https://en.wikipedia.org/wiki/Mister_Splashy_Pants

Fun fact static is very broadband

I recommend blend2d: https://blend2d.com/. Very well done, very fast. No GPU acceleration but it has a JIT and you can probably get further than you think without it.

You're getting downvoted but this gave me a chuckle

oh puh-lease

edit: having read the whole article now it's actually pretty even-handed, I guess mentioning Oppenheimer was just marketing?

Likely the goal would be to find new optimizations that were previously overlooked, then codify those like usual.

I'd rather have an optionally-owned pointer type so I can handle writing virtual methods that can return a value aliasing an already existing value or create a new one on demand. Otherwise you either have to roll your own or bloat your API:

  virtual std::flexptr<Thing> get_expensive_thing();

vs:

  virtual bool has_expensive_thing();
  virtual const Thing& get_expensive_thing();
  virtual std::unique_ptr<Thing> build_expensive_thing();

It'd probably have shared_ptr semantics but you'd have to treat it as a const ref for lifetime purposes, which might make it distasteful to the std library folks.

Basically Ray Kurzweil's argument, he's been saying $1000 worth of compute will be able to match human performance around 2029 for decades now.

> I am not a real expert in superconductivity, but I am a guy on the internet with opinions, so here we go with some early reactions:

Alrighty then.

gross

Disagree, once you know what you're looking for you can thread the needle pretty easily. I've worked in high-performance areas most of my career and it's pretty wild when I solve a leetcode problem for fun and can routinely get into the 99% percentile on speed and memory usage just from knowing what to avoid.

Honestly what a weird set of people. If you have to go out of your way to make sure people know you're not Nazis, maybe you're treading a little too close to dangerous waters.

> It also means resisting any attempt by what Malcolm calls the ‘woke mind virus’ to assimilate their children into a progressive monoculture.

Bwoop bwoop bwoop right wing nut alert.

Ah yes you're right that you have to be careful, it'll fold at multiples of the nyquist frequency and you want to make sure your SOI is entirely contained in one of those zones.

You have to have a band limited signal to sample anyways, where it's at in the spectrum doesn't matter. The first thing you'll do before feeding anything to an ADC is running it through a filter to make _sure_ it's band limited. Whether that filter's at DC or some Rf doesn't matter.

Here's the result from his original paper where he specifically says that it doesn't have to be at DC:

https://imgur.com/uSywML7

I'm afraid you're mistaken (source: worked as DSP engineer for 15 years). Often you apply your filter around the RF frequency you want and then sample at a lower rate. You're right that the signal will get aliased doing that, but the information is always preserved.

If you sample s.t. your folding frequencies are in an appropriate place, you can fold your desired region into the first nyquist region without needing to mix it down. This is especially desirable if you can avoid having to build an IQ mixer because they're hard to keep balanced.

The worst case doing this is that your signal spectrum is reversed in frequency, but you can correct that easily digitally.

Yeah Traits give you more than just the type of the output, they let you specify how it must be called to get that trait, that's a key capability for writing generic code. Sure I can write a to_string() method but someone else will call it ToString() and I can't use it. If we both impl Display then it's all good.

This doesn't even seem that clever, just regular ol' use of mmap where there was none before. Wonder what other performance is being left on the floor. I'm convinced entire power plants could be retired if the world stopped using python unfortunately.

I think OP is saying he's not a kid, and he's not at 31, always relative though =D

My defense is usually that it's ok to have a little pride of craftsmanship, and if you let people scratch that itch they'll be happier and more content in their jobs, making it a long-term cost saver.

Performance just isn't prioritized. If you spend a week optimizing making something faster, you just get hit with the ill-quoted premature optimization line and shamed for not working on higher priority tickets. Fine, I'll just leave it slow then.

I don't like Javascript but you're mistaken on the performance part, even I have to give the JIT people props for how fast they've made the language in general.

Most of those raises on the moderately wealthy will expire December 31, 2025, the ones on the middle class won't

Man they're gonna put this kid under the jail

Faster, Skia is GPU accelerated, whereas Blend2D is a CPU rasterizer.

I've been using blend2d for a visualization program and it's a worthy successor to AGG

Once again glad I don't work with Linus

Begun the RTO wars have

Please, quit messing with my scroll speed.

Haven't Skia et al been GPU accelerated for ages?

Fun fact most experts consider the US uninvadable: https://en.wikipedia.org/wiki/Invasion_of_the_United_States#...