bri3d

6 ms·

31.
by bri3d 2mo ago
I don't think I'm really conflating anything, and I don't agree with your thesis even though I agree with individual points. 1) Yes, unless you add abstraction at the ABI/ISA level in hardware or microcode, which then de
32.
by bri3d 2mo ago
The myth I was referring to was the overarching theme that “VLIW would have been practical if only a better compiler existed,” which I don’t believe to be true for modern or Itanium-contemporary general purpose computing patterns.
33.
by bri3d 2mo ago
These worked well for “known” intra-task pointer aliasing situations, but if you don’t know what will be in cache due to preemption of any kind, you still don’t know how many cycles the speculative loads will take, so you get the same stall
34.
by bri3d 2mo ago
No (sorry, I post this every time the Mythical Compiler Myth reappears), the problem with VLIW is that it fundamentally doesn’t work for anything with unpredictable memory access patterns, and modern general purpose computing has moved almo
35.
by bri3d 2mo ago
I enjoyed seeing a throwback wololo link enough that I think maybe it should stay, but the real (linked) research is at https://github.com/mcidclan/psp-media-engine-cracking-the-un... and stands well enough on its own
36.
by bri3d 2mo ago
This is a very good text and regarded as one of the greats for a reason, but it glosses over a lot of lower concepts (like OFDM, which if I recall occupies only a single short chapter) and focuses very heavily on MIMO. Proakis and Salehi (&
37.
by bri3d 2mo ago
Zoom were a very longstanding modem company who expanded into cable and routers and licensed the Motorola brand in 2016.
38.
by bri3d 2mo ago
Vendor wise, these were never really made by a “Motorola” -this is a Zoom router (thus the domain) that used the Motorola name under license. The “old” Motorola router division Motorola Home got sold to Arris _without_ the brand name in 201
39.
by bri3d 2mo ago
AMBA has been an open standard for a really long time, I think maybe since it was released?
40.
by bri3d 2mo ago
It’s a completely different backend model; as far as I know alipay works just like PayPal where transactions are fully “internal” - the buyer pays Ant Group and the seller cashes out at a later date. UPI is a real inter-organization payment
41.
by bri3d 2mo ago
Right, there are two problems there: * Pilots are very concerned about life and safety and are heavily exposed to drone “incident” related anecdotes, so they err far on the side of caution with drone sightings. Which is to say a very low pe
42.
by bri3d 2mo ago
Most major airports will already have a counter-UAS system, it's a huge industry. One big issue with radar is that it has the same problem pilots and human observers do: it struggles to distinguish drones from anything else in the sky
43.
by bri3d 2mo ago
This is weird to me too, especially to say in the present tense in 2026. I think I get the point about "Rust culture" (although it's too vague to agree or disagree with, probably on purpose). But in 2026, Rust is fully a comm
44.
by bri3d 2mo ago
It’s a huge problem. The most common approach to address it is called smearing; the duration of each second for a 24 hour period ahead of the “leap” is adjusted. For strict ordering systems this works as each device maintains time sync with
45.
by bri3d 2mo ago
Users with data caps are an obvious reason, for example, see this frustrated user report here: https://support.google.com/chrome/thread/415181794/chrome-al... . To your point about `fetch` in the sibling comm
46.
by bri3d 2mo ago
Just the availability wouldn't be that bad from a fingerprinting standpoint (getting one bit that a majority of Chrome users have is just the same bits you already have, usually), except, it also exposes whether the underlying hardware
47.
by bri3d 2mo ago
Impression v. Lexmark is directly relevant to the patent situation here; in a case involving reprogrammed ink cartridges, the Supreme Court held that patent rights are exhausted by first sale doctrine; that is, if you sell me something pate
48.
by bri3d 2mo ago
> Is this not what happens in most SaaS? I think it's fairly popular to try to do more logical isolation in SaaS now, especially with VM-scheduling-as-a-service becoming more popular. For example, I did security architecture at a co
49.
by bri3d 2mo ago
Yes: * There's an enormous amount of very expensive shared state (context cache) which you do not want to duplicate when you can avoid it. * Memory locality is crucially important for performance. * Hardware is extremely over-subscribe
50.
by bri3d 3mo ago
> A vulnerability can’t leak your key if the TPM doesn’t know the entire key and relies on the user to supply the missing parts of the key in the form of a PIN. First off: I agree with your thesis, BitLocker with PIN is Just Fine, equiva
51.
by bri3d 3mo ago
For the system drive they seem to really strongly prefer PIN, which also doesn't have the problems linked above. I was going to use PIN as my example but didn't want to explain another set of recent BitLocker conspiracy theories y
52.
by bri3d 3mo ago
Having dealt with FileVault in this context, it's also frustrating; it's really common to have it fail to follow the logged-in user's credentials, and if you use any kind of federated login, you will frequently get users with
53.
by bri3d 3mo ago
The issues you linked with BitLocker are obvious properties of BitLocker-with-SecureBoot-only architecture. If you configure Linux that way, you get similar issues (for example, it's pretty easy to mis-configure TPM sealed disk encrypt
54.
by bri3d 3mo ago
It’s less a question of people and more one of "Why doesn't a hardware company want to give away their IP design documentation?"
55.
by bri3d 3mo ago
For "copter" style drones, 3D printing is basically a "noob" meme at this point; everyone thinks it's a good idea, tries it, and realizes that it's actually really hard and doesn't work. Copter-style drone
56.
by bri3d 3mo ago
Low end and most open source stuff will use a PID inner loop for “fast path” control (stabilization) and either a second PID loop or something a little better (Kalman filter etc) for the slow path (position / path hold). Higher end stu
57.
by bri3d 3mo ago
Most filament based printed frames end up with really nasty resonance; it’s possible to engineer damping around the issue with some clever 3D design if the parameters of the prints are measured, but overall 3D printing copter frames doesn’t
58.
by bri3d 3mo ago
Ahh, thanks for the correction, it's the window manager that's closed (lipstick-jolla-home). Regardless, I will stand by my statement that a fully open-source build of AOSP is significantly more complete and useful than a fully op
59.
by bri3d 3mo ago
> It's still more open than AOSP I don't think this is true at all? AOSP is completely open source modulo driver blobs (which Sailfish has too) and Google services. One can make a fully functional system, modulo drivers, out of
60.
by bri3d 3mo ago
> Somehow hardware giants like Dell, HP, SuperMicro, etc didn't make a product like this, even at their peak in 2000s or during cloud boom in 2010s. Not so sure about this one. HCI (Hyperconverged) rack units (where storage and com

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