Farmadupe

8 ms·

31.
by Farmadupe 3y ago
Out of interest, what could make such a design better than a traditional inductive motor? Such motors already suffer inductive losses, and do not need slip rings or brushes, and presumably do not an additional set of windings to transfer po
32.
by Farmadupe 3y ago
I know press releases never describe anything that's actually novel, but it looks like they're just describing an asynchronous induction motor? I'm wondering if this release is implicitly pretending that some "low slip r
33.
by Farmadupe 3y ago
Download counts don't mean very much here as I'm fairly sure both crates are common transitive dependencies. Or in other words, millions of programmers aren't individually choosing Anyhow or Thiserror on a monthly basis -- th
34.
by Farmadupe 3y ago
Im assuming the "halt and catch fire" thing is only really possible on pre-microprocessor machines built of discrete components, where the individual parts are small enough to overheat by themselves if driven wrong. I'd guess
35.
by Farmadupe 3y ago
just a few drive-by comments: First and most important, the title claims these are safety-critical rules, but the conclusion says that they are only being used on mission-critical projects. I get the feeling that there might have been some
36.
by Farmadupe 3y ago
Considering it's allocation-free, maybe it's an ultralight/ simulator for checking large quantities of compiler output? (i.e no VM to create and destroy for every testcase) Or the same but for testing some verilog/vhdl C
37.
by Farmadupe 4y ago
Honestly I think your observation is mostly right... if you don't have a hard performance requirement, then rust probably isn't the best language to write your code in...
38.
by Farmadupe 4y ago
GP might have been referring to undefined/invalid behaviour (whether in the language or in some OS syscall or whatever). After the demons came out of your nose you can never fix the problem, so there is no point trying to handle the er
39.
by Farmadupe 5y ago
Aerospace still uses traditional waterfall processes (usually called the 'V' lifecycle in the industry because if you put a 90 degree bend in the waterfall it looks like a V). The flow of responsibilities is strictly hierarchical.
40.
by Farmadupe 5y ago
Yes I agree such a system is definitely embedded.. I think I was deliberately constructing a straw man in a (bad) effort to poke fun at people such as myself who have 'opinions' on what embedded 'really is'... "640k
41.
by Farmadupe 5y ago
> 1. A huge chain of dependencies. I think there is another side to this coin though. IMO there are too many embedded shops that overlook reliable 3rd-party code in favour of spending man-hours growing their own code from seed instead. O
42.
by Farmadupe 5y ago
I'm not 100% sure, but I think the OP was talking about the overhead of lifetime management for objects that don't live for a very long time. Or maybe objects that don't have "interesting" lives. One example in my h
43.
by Farmadupe 5y ago
One of the most thought-provoking aspects of information theory is that when someone says something interesting in a small amount of words, it's indistinguishable from line noise. tldr; I've never read Overshoot either but I thoug
44.
by Farmadupe 5y ago
For context I'm in the safety critical industry where everything is old and slow, and you're slightly more likely to see FPGAs for "traditional" non-signal-processing reasons (bundle of logic with deterministic timing, c
45.
by Farmadupe 5y ago
Gone over sections 16..19 - Several questions are clearly nonsense, eg 17.11) "MISR the BIST out of Z!Xussia" or vague eg 16.4b) "Explain at least 2 different types of data Perl/Python can handle". Question 18.h) &q
46.
by Farmadupe 5y ago
I get that decoding only keyframes will be much faster, but how can codec independence be maintained when different codecs will insert keyframes at very different points? Could such an algorithm ever find a duplicate between say a GIF (ever
47.
by Farmadupe 5y ago
As other posters have commented, hashing schemes like this are not really robust to a few very simple transformations, such as slight offsets in time, and cannot detect if one video is a clip from another. Practically you can only expect su
48.
by Farmadupe 5y ago
Any chance we've got time for the meta question.. Does anyone have a clue why prion diseases are so popular on HN at the moment? AFAIK it's not something that often turns up in mainstream media? Not even as something they keep in
49.
by Farmadupe 5y ago
I'm guessing this is probably the usual fight between media trying to overexaggerate stories like this, and PR departments trying to downplay them into nothingness. GWR's PR might be expecting some a newspaper to release a inflamm
50.
by Farmadupe 6y ago
I think given the naive algorithm of both implementations, and the fact the python and cpp are near transliterations of each other, the article isn't really trying to make the literal statement of the words of its title. Of course the
51.
by Farmadupe 6y ago
I think this feels like an underestimate of the performance difference? I generally keep in my head that C/CPP is roughly 100x faster than python, and the computer language benchmarks game seems to support this (I admit that the soluti
52.
by Farmadupe 6y ago
I noticed in the git repository's Cargo.toml that no optimizations are enabled. If you add opt-level=3 to the [profile.release] section, you might be able to speed up your rust code a little more.