phire

27 ms·

1.
by phire 3d ago
Also, even if ignored the fact that it was a co-processor, we don't generally count the width of the floating point and vector registers. Otherwise most modern CPUs would be labeled as either 256-bit or 512-bit. These days we generally
2.
by phire 5d ago
Ah, those timings make a lot more sense. They aborted the go-around attempt because they were literally at the end of the runway; Probably because they thought it would be "safer" to run off the end without the engines rapidly rea
3.
by phire 6d ago
Isn’t there a regulation for idle to full go-around thrust in a maximum of 8 seconds? If so, it’s tight… but i feel like they should have made it if they had stuck to that plan. They commanded full power 15 seconds before the crash, and wer
4.
by phire 6d ago
It's only tier-1 for internal Microsoft use. And for all we know, it might be officially supported in their internal builds of Visual Studio.
5.
by phire 9d ago
The fact it does speculative execution and dual-issue is well documented. The chipsandcheese article [0] is probably the best overview. The "how" it does dual-issue is not documented at all, so I'm speculating. There is no
6.
by phire 9d ago
No, on appeal the simple checksum was ruled to NOT be an effective measure. [0] And while courts might have ruled that a CAPTCHA might count as a "technological measure" they haven't gotten as far as ruling them as "effe
7.
by phire 10d ago
Well yes. That is why the "prefetch" is a problem. But the original question was asking why disabling data prefetching to a memory region didn't automatically disable instruction prefetching at the same time. And the answer i
8.
by phire 10d ago
> the "decoy notes" may be considered an "effective technical measure" from the "Digital Millennium Copyright Act". I really hope not. My understanding is that to be "effective" it needs to at le
9.
by phire 10d ago
The problem is that unlike data prefetch, the so-called "instruction prefetch" is not actually prefetch at all. It's simply speculative execution. Which doesn't look any different to regular execution. The fetcher has no
10.
by phire 10d ago
I suspect it's actually possible to prove such an algorithm can't exist. By definition, a ZST hold no runtime data. It does hold some compile-time data based on its existence, but after compiling, that has been type erased away. S
11.
by phire 11d ago
> whereas a Rust object only has identity if it has a non-zero size. Rust also has the complication that function pointers are not guaranteed to have an unique identity; If multiple functions compile to the same code, the compiler is a
12.
by phire 11d ago
If you are working in a team, maybe. Though you are probably better off making sure any files containing keys are already explicitly listed in .gitignore Plus, it's not the worst idea to exercise your "whoops we leaked our secrets
13.
by phire 11d ago
I was not expecting the CT scan to be able to identify the cores within the die. But now I think about it, the metal layers (especially traces carrying power) are probably think enough, and different enough to show up. And even just power d
14.
by phire 11d ago
LaMia Flight 2933 - https://en.wikipedia.org/wiki/LaMia_Flight_2933 The pilots took exactly enough fuel to reach their destination. They didn't have enough fuel to divert to an alternative airport. They didn'
15.
by phire 12d ago
> vs. only the rare cases where you need to dip into fuel reserves. There aren't that many existing flight routes that will fit into the 125 mile range (though the existence of this plane might change that), so I suspect we will s
16.
by phire 12d ago
Well, obviously it's going to be a much easier investigation, especially when you can interview all the crew. But still very serious. 9 simultaneous fuel emergencies could have easily overwhelmed ATC and snowballed to worse issues. Som
17.
by phire 13d ago
> and should not happen on well planned flights You make it sound like it is acceptable for a badly planned flight to have a fuel emergency. It is not. If there is a fuel emergency (or the plane lands with less than 30min of fuel) ther
18.
by phire 13d ago
> That being said, I wouldn't be surprised if they didn't start the generators during critical phases I somewhat doubt that. Part of the advantage of the design is that the generators don't need to be sized as big enough t
19.
by phire 18d ago
Needs to start somewhere. Looks like the most important step towards tier two is mostly about proving the CI infrastructure is reliable (which takes time at tier 3), and have at least two core developers committed to fixing any issues (with
20.
by phire 22d ago
As much as I enjoy rust, there is no reason why a c++ library can’t be optimised to match the rust implementation. It’s very rare that the actual performance benefits of rust implementations come from rust itself (though it does often push
21.
by phire 27d ago
Apple are still far less reliant on advertising than google; They take far stricter stances against apps tracking users than google; And they actually let me an Adblock extension (or any other extension) in Safari. Apple is not some magic s
22.
by phire 28d ago
Yeah, that argument is much better; Maybe google are violating the GPL. What that part of the GPL does absolutely forbid is stripping out the comments from the source code, or only shipping generated source files (but not the code which gen
23.
by phire 28d ago
Yeah, I was a loyal Android user for 15 years. For the first half, custom ROMs were a massive boost to the experience, but I never really bothered after 2018; You had to install so much of google's stuff to get anywhere near proper exp
24.
by phire 28d ago
I switched to an iPhone last year, mostly because I was getting sick of Samsung’s shit, and google doesn’t sell their pixel phones locally (and I don’t like Oppo). But the other reason is that most of Android’s openness is quickly disappear
25.
by phire 28d ago
“a medium customarily used for software interchange“ Interesting choice of cropping for that quote. If you had included the previous word, it would be blindly obvious that “on a medium“ is only talking about the transport layer, not the for
26.
by phire 28d ago
Google are absolutely within the letter of the GPL, pedantically so. But maybe not the sprit. We didn't have git tags when GPL was written in 1989, and while we did have sccs and rcs, (and early versions of cvs) they just weren't
27.
by phire 29d ago
Technically it could be expanded all the way to 640KB But only the first 256 KB was on the motherboard, you needed a memory expansion card for the extra 384 KB, and I don't think they really existed in 1982. Actually, you could somewha
28.
by phire 1mo ago
And on the RP2354 you can swap one or both ARM cores for RISC-V cores at boot. I think the CH32v303's single V4F core might be slightly more capable than the Hazard 3 cores RISC-V cores (as it has a hardware FPU), but for everything el
29.
by phire 1mo ago
Softbank and ARM managed to burn a lot of good-will with that bullshit (it is a bad sign when I'm siding with Qualcomm), and all for nothing as they lost that lawsuit. But is generally true that the $$ buys architecture licensees quite
30.
by phire 1mo ago
You aren't disagreeing with the existence of the roadblock, just how hard it is to overcome. And yes, there is a bunch of funding being pumped into it. I do have hope that some kind of RISC-V linux workstation will be viable in the nex

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