pslam

10 ms·

31.
by pslam 8y ago
Netflix is not a user. The end customer is. Flipping this on its head, so that it sounds like the "super heavy users" are the businesses, is an anti-net-neutrality talking point. Don't fall for it. Businesses such as Netflix
32.
by pslam 8y ago
If this is deployed in release builds — in production — then it is effective in mitigating anything which isn't covered in fuzzing. Your application/process gets terminated, which is perfectly acceptable behavior.
33.
by pslam 9y ago
This is not true. There are ways in which "at-will" termination can be illegal. Most obviously, protected-status discrimination. Termination related to labor organization is illegal. However, recourse (for the employee) generally
34.
by pslam 9y ago
I’ve found my fair share of SoC bugs over the last couple of decades, and cache coherency is by far the most common problem. It’s complex to implement, and implementers are always messing with it to gain a cycle here and there. They get it
35.
by pslam 9y ago
I know it's a joke, but this still branches, via an obscure mechanism of faulting, and mov instructions past the faulting instruction will speculatively execute.
36.
by pslam 9y ago
At least in the case of Cortex A-7, there's about 2-3 cycles (maybe 3-4 instructions with dual-issuing) before a branch mis-predict causes a pipeline flush. You can maybe fit a couple of loads into that time, and maybe one of them will
37.
by pslam 9y ago
The cores in (all versions of?) Raspberry Pi do speculatively execute. It's just that the window of opportunity is tiny - just a few cycles (and maybe up to twice that many instructions) - and there's (probably) no way to get an
38.
by pslam 9y ago
As far as anyone can tell, the data from the breach hasn't been used yet. When that happens, it'll probably be the largest identify theft fraud ever, and if it's traced to Equifax, we may see an "adjustment". I&#x27
39.
by pslam 9y ago
The UK was an example of consolidation resulting in terrible quality and limited choice. The "CAMRA" (CAMpaign for Real Ale) group is a result of push-back against this, and has been very successful: http://www.camra.or
40.
by pslam 9y ago
As a veteran from the chip industry, I can tell you my experience is completely the opposite. Nobody in their right mind would produce an ASIC without going through simulation as a form of validation. For anything non-trivial, that means FP
41.
by pslam 9y ago
> If you want to know about how chips are made then I'd highly recommend the book "CMOS Circuit Design and Simulation" by Baker. This is a ~$120 book. Do you (or anyone else) have a recommendation for something a little ea
42.
by pslam 9y ago
"This device is not part of A Bomb. Rather, it implements a common wiring and chemical mixture function that may be used to ignite, and rapidly interact with the surrounding environment. Implementation of A Bomb is not required for use
43.
by pslam 9y ago
"The accidental nuclear launch was blamed on a single piece of software in a web service" -> Is obviously a stupid assessment. "Equifax was the victim of a hole in Apache Struts" -> Likewise. Nothing so valuable sh
44.
by pslam 9y ago
Absolutely agree. Almost all tasks will perform very well when using multiprocessing. It also has a nice side-effect of steering you towards explicitly coding data flows without fine-grained sharing. If you need to close that gap between th
45.
by pslam 9y ago
This is the wrong way to go about it. x86 mnemonics bear little resemblance to the encoded binary machine code. For example, what x86 lumps into a single "mov" mnemonic, is actually half a dozen different underlying instructions,
46.
by pslam 9y ago
Or just never install an identity in the default location (.ssh/id_*)
47.
by pslam 9y ago
You're right. I'm remembering a different codec — I think this is how H.264 orders DC coefficients for macroblocks. JPEG uses an actual 2D DCT, not a 1D DCT of a flattened block.
48.
by pslam 9y ago
JPEG transforms 2D images into 1D arrays using a "zigzag" ordering of 8x8 blocks. See this diagram on wikipedia: https://en.wikipedia.org/wiki/JPEG#/media/File:JPEG_ZigZag.s... It's a shame the
49.
by pslam 9y ago
> Note that we’re 40 years of Moore’s law scaling later and the available memory bandwidth per instruction has gone down substantially. This is unfair, and (this is me being unfair now) this article is missing the woods for the trees. Th
50.
by pslam 10y ago
What did you expect — a turn-key solution for sale? They claim no such thing. This is great research. They've demonstrated that it is in fact possible to obtain a passcode at a distance, at least in contrived conditions. The fact it&#x
51.
by pslam 10y ago
H1B is not mentioned by the actual DOJ complaint. This is not an immigration story.
52.
by pslam 10y ago
You would think, from your comment, that this case involved immigration and/or the H1-B Visa system. But it doesn't. Immigration isn't mentioned whatsoever in the document. > Can the DOL back up this claim with salary data
53.
by pslam 10y ago
You're missing the part where the employer is required to: - Post representative salary data, including the last few (5?) hires to this position. - Publish the job position locally, so it can be filled by local workers preferentially,
54.
by pslam 10y ago
> When I read OP's question I was thinking about already-shipped products that became too hard to run and maintain. I've been mostly in consumer electronics related companies, where a product which ships and then becomes too ha
55.
by pslam 10y ago
How about: All Of Them Every failed product/project I've worked on in my professional career, which had full intent to ship from the start, was killed by technical debt. It's usually indirect, but it's always the root
56.
by pslam 10y ago
"The directors of Lyft and Uber are legally required to maximize profit for the respective shareholders." This is utterly not true, and even companies like Google have (had?) it specifically written into their shareholder prospect
57.
by pslam 10y ago
Video output and its perception, is not at all like audio output and its perception. We can make blunt statements about the limits of audio, because output devices behave (largely) linearly and band-limited, and because human perception can
58.
by pslam 10y ago
I've never been a fan of SELinux, in the context of what a "normal" GNU/Linux install looks like. I've only just managed to put into words what my misgivings are after reading this article: it feels like anti-virus
59.
by pslam 10y ago
There is a monumental amount of "faster horse" in modern OS deployment. Hypervisors, and their ugly cousin - secure monitors, are an example of Conway's Law. They exist because there are different groups involved in writing t
60.
by pslam 10y ago
This is not wikipedia, and we don't need [Citation Needed] for everything we say. As you point out yourself, you can easily find at least 5 results. You can also easily find references for everything else I say. The standard here is no

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