sparky

10 ms·

31.
by sparky 13y ago
> it took her at least three years (isn't that a long time for a full time law student with no other job?). Nope, that's the standard.
32.
by sparky 13y ago
Yeah, there are a few specialized parts for networking, telecom equipment, defense, and other less cost-sensitive applications, but DDR and, to a lesser extent, GDDR dominate the market and enjoy much greater economies of scale.
33.
by sparky 13y ago
Yeah, given a predictable access pattern, latency can be completely hidden by prefetching. For an unpredictable access pattern, there's a physically imposed lower bound on random access latency, roughly proportional to the square root of t
34.
by sparky 13y ago
> DRAM has 50+ ns of latency no matter how close you put it to the chip. This is not some fundamental law; it's entirely dependent on bitline and wordline capacitance (array size). For external DRAM chips, huge arrays make sense, and y
35.
by sparky 14y ago
This is the closest I've found [1]; it's an expanded version of a SPAA paper by the same name. It's not executable, but it's pretty detailed and C-like as paper pseudocode goes :-/ [1] http://www.cs.technion.ac.il/~erez/Papers/lfbtree-ful
36.
by sparky 14y ago
That was the primary reason I was confused; "WTF does it mean for software to not use latches?" :)
37.
by sparky 14y ago
Thanks for clarifying! It makes sense to use a different word in the DB community if Lock has some other previous meaning. It's easy to forget that RDBMS terminology has been along longer than most areas of CS. The terminology clash in th
38.
by sparky 14y ago
Lock-free B+ trees seem like a natural and good idea. However, it's hard to evaluate how it compares to previous work, in part because this paper uses completely different terminology than any paper I've ever read on lock-free or wait-free
39.
by sparky 14y ago
To be clear, my differential pairs are impedance controlled in the sense that their trace/space yield the correct single-ended and differential impedance values at the nominal dielectric permittivity and thickness, but OSH Park doesn't ad
40.
by sparky 14y ago
Good luck with the waveguide! Have you done anything that high-speed with OSH Park before? I'm waiting on a PCIe board from them that I hope will do Gen3 speeds (8GHz) over 2.5-inch traces, but the lack of impedance control has me nervous
41.
by sparky 14y ago
FWIW, that image is a preview from the OSH Park ordering site[1]. I can highly recommend the service for prototype 2- and 4-layer boards. The price is right, the turnaround time and customer service are awesome, and the specs are better t
42.
by sparky 14y ago
I'm guessing one of the main concerns is avoiding the scenario where a bunch of people pass around a single car, and each claims a huge tax credit while not helping the environment (as much). The current rule is that only the first sale or
43.
by sparky 14y ago
Just use bcrypt [1] (or scrypt [2]) [1] http://codahale.com/how-to-safely-store-a-password/ [2] http://www.tarsnap.com/scrypt.html
44.
by sparky 14y ago
Most likely it's something like x86 PAE, where each process has a 32-bit address space and the page table just has a few extra bits to map into a >4GB physical address space.
45.
by sparky 14y ago
How does this prediction jibe with the statement that a larger sensor will always be beneficial, especially in low light? Will smartphones be able to include much larger sensors in the future? Is there some new physics that obviates the nee
46.
by sparky 14y ago
> You have to separate two scenarios: plaintiff brings a justifiable suit but loses, and plaintiff brings an unjustified suit. The latter is handled through professional discipline of the attorney's involved. Honest question: can you po
47.
by sparky 14y ago
Works on 3.2.0 too. I do get: ~$ file a.out a.out: ELF 32-bit invalid byte order (SYSV) But that's probably to be expected, given how close to the edges of the ELF spec it treads :)
48.
by sparky 14y ago
> I see. So if I may paraphrase, TSX can also help write work-loads by eliminating locks that weren't actually needed because no actual contention over the same data occurred. This can happen if the lock was too coarse-grained and the w
49.
by sparky 14y ago
I'd love to see someone use this to build a browser-based way to use web-app-type things stored in Dropbox. I have a TiddlyWiki [1] stored in Dropbox, and I can view and edit it from any computer with Dropbox installed. On mobile, I can v
50.
by sparky 14y ago
The idea behind TSX was originally called speculative lock elision, and comes from this MICRO 2001 paper [1]. The paper provides a more coherent motivation of SLE/TSX than the Intel marketing literature, and contains some concrete (simulat
51.
by sparky 14y ago
The libc one uses is orthogonal to the compiler, modulo support for any language extensions the libc might use. LLVM supports glibc just fine, and will use it by default on Linux systems. That said, whether GHC can make more use of glibc's
52.
by sparky 14y ago
Good point! I'm in the midwest, and we have a few Aldi stores here too. There's definitely a distinction between opting out of packaged food (making things from scratch, eating more fruits/vegetables, ..) and opting out of the marketing-d
53.
by sparky 14y ago
It's certainly possible to opt out of packaged foods as a way of saving money, but I don't think I know anybody who's done so. I'd go so far as to say most people do it to eat tastier, healthier, and/or more ideologically pleasing food,
54.
by sparky 14y ago
There was a talk at the 2011 LLVM dev meeting (cached slides here http://webcache.googleusercontent.com/search?q=cache:http://... , llvm.org is down today) about Renderscript's design philosophy and LLVM-based compilers. In short, it's no
55.
by sparky 14y ago
How much of that pricing power would remain if Costco carried as many items as Amazon? Amazon is predicted to eclipse Costco (and Target) in terms of sales this year ( http://money.msn.com/top-stocks/post.aspx?post=34532428-58cf... ), so g
56.
by sparky 14y ago
congruential? :)
57.
by sparky 14y ago
Stereoscopic 3D, so one image per eye, right?
58.
by sparky 14y ago
ARM is still a bit icky, but nearly anything this side of a VAX mainframe will be easier to grasp than x86. If anyone's looking to learn, MIPS is really easy to pick up. There's a good simulator (SPIM[1]) with terminal and GUI interfaces a
59.
by sparky 14y ago
In my experience, kids can see how much money is going out, or how much their parents care about saving money, buying luxury items, etc., but have no idea how much is coming in. A frugal $120k family can live identically to a profligate/in
60.
by sparky 14y ago
It's not the only choice, just the most likely one. It's certainly possible for a business dedicated to distribution and sales to provide an experience superior to that of a manufacturer doing sales on the side. It's tougher in this case b

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