jzwinck

85 ms·

721.
by jzwinck 11y ago
A huge amount of electricity is wasted in non-cloud datacenter deployments which service limited geographies (time zones). For example, the US stock market is open from 4 AM to 8 PM, leaving one third of the day with literally no trading a
722.
by jzwinck 11y ago
It's probably mostly real code, though cars certainly do use plenty of lookup tables, starting from one of the earlier uses of computers in cars, the engine control unit. Modern cars have tons of things needing code: Power seats wi
723.
by jzwinck 11y ago
The title of the first slide in the video is "Heap allocations are expensive!" And using a pool the way I'm proposing does not fragment the heap. It might be slightly worse if you serially touch a lot of Meshes which have o
724.
by jzwinck 11y ago
But if you only ever create a single Mesh, then you wouldn't care to coalesce the allocations, because three allocations instead of one is inconsequential in the course of an entire program lifetime. I agree that there are many vertic
725.
by jzwinck 11y ago
I watched the linked original video to understand the motivation, and read the article, and I think this is a misguided solution to a real problem. These "joint allocations" seem to be "a small pool of heterogenous types.&quo
726.
by jzwinck 11y ago
I was excited to see a non-paywall link, but isn't that entire site blogspam? It's called "iBloomBerg" which is surely a lame riff on the name "Bloomberg" but has nothing to do with Bloomberg. And it doesn&#x
727.
by jzwinck 11y ago
> How much of the value people see in Nasdaq is the technical systems that execute the trades? Quite a bit. They do a good-sized business selling their technical systems to other markets (mostly outside the US). An example from the opp
728.
by jzwinck 11y ago
> Reliable and safe trades can now be done by a swarm of computers running free software, and they only charge a tiny margin over the costs of bandwidth, energy and storage. Do you have an example of such a market today? It's actual
729.
by jzwinck 11y ago
Has the author read Walden ? If she had, she might find it incongruous to use cellular internet service and wi-fi during her adventure. She might also recognize that Thoreau was not so short on things to do, partly because he did things.
730.
by jzwinck 11y ago
No need for a VM, just do some filtering in Wireshark. This will help you understand even better what is possible (filter by IP, port, and many other things).
731.
by jzwinck 11y ago
If you want to disappear, maybe you should do it in a place other than America, so that you will not need to so thoroughly marginalize yourself (panning for gold?!).
732.
by jzwinck 11y ago
If you get stuck with a tool lacking such an option, you can run it under "script" to trick it. I recall other programs to do similar using a pseudo-TTY but I can't recall their names now (and with a name like "script&q
733.
by jzwinck 11y ago
One fun thing is to download Wireshark and look at the packets being sent in detail when you do common things like browse the internet or use FTP.
734.
by jzwinck 11y ago
In that case, does HaskellR interfere with copy-on-modify in R, for example does it increment the reference count of R objects, then try to decrement them (which R doesn't or didn't really support), leaving those objects appearing
735.
by jzwinck 11y ago
Yes, the US has race disparities above and beyond what the UK has. Part of this is because the US brought slaves to its own shores, whereas the UK kept them far afield and ultimately denied them citizenship.
736.
by jzwinck 11y ago
How does garbage collection work? Does this version improve on the R I know from a year ago, which had a reference counting system with only three values: 0, 1, and 2+?
737.
by jzwinck 11y ago
Set environment variables in the calling shell. Because you cannot run Python etc via "source".
738.
by jzwinck 11y ago
A couple grand a month is more than sufficient pay in many parts of India. Heck, it's enough for new police officers in New York City (ok, I'm ignoring payroll tax and insurance for this one).
739.
by jzwinck 11y ago
Either I have a very different idea of what London's "City Centre" is, or the numbers above for London look quite low. That said, for some people, Zone 4 is "central" and for others only Zone 1 is. Curious how the
740.
by jzwinck 11y ago
Boost.Python (and Luabind which descends from that) has a similar concept they call Custodian And Ward. There, an object can extend the lifetime of another one, often for the same parent and child rationale in this article. It doesn't
741.
by jzwinck 11y ago
They aren't always the right tool for the job. Maps allocate every node separately (c.f. Boost Intrusive). Vectors don't generalize to multiple dimensions efficiently. Lists for a long time had only the doubly linked type. Vendor
742.
by jzwinck 11y ago
How do Chinese people differentiate 珠 "pearl" from 朱 "vermilion" in a spoken context such as "What material is best worn by an emperor?" These seem to be homophones, yet the words are similar enough in usage t
743.
by jzwinck 12y ago
The text should literally read "Price (USD per month)". Then it will be clear, unambiguous, and obviate the need for the snippet at the bottom about "$USD" (which is not a standard notation).
744.
by jzwinck 12y ago
Have you seen this? http://www.bbc.co.uk/news/world-middle-east-15121879 Two weeks later: http://www.washingtonpost.com/world/national-security/anwar-... Both of the above were US citizens ki
745.
by jzwinck 12y ago
Here is the official document from the Swiss government wherein they dictated to other countries how much their money was worth: http://www.snb.ch/en/mmr/reference/pre_20110906/source/pre_2... This
746.
by jzwinck 12y ago
YKK's popular Vislon model has the tabs: http://www.ykkfastening.com/products/zipper/slider/zipper_ty... - yet other models from them do not (e.g. http://www.ykkfastening.com/products&#x2
747.
by jzwinck 12y ago
Some Lenovo laptops have shiny black plastic lids, like the SL500 (designed over five years ago): http://www.notebookjournal.de/storage/show/image/image48aeba...
748.
by jzwinck 12y ago
The British put their currency symbol in front as well. Malaysians write theirs like "RM8"; RM being their local currency symbol despite the ISO one being MYR (this happens because ISO puts the country first but many countries wou
749.
by jzwinck 12y ago
The quote at the end is almost certainly taken out of context: > We found that 89% of Twitter users are cricket fans, they follow cricket in some way—either they follow sports, people or teams. That came from someone in India, who surely
750.
by jzwinck 12y ago
I'll give you a concrete example of something that HSBC UK requires visiting the branch for: opening a Certificate of Deposit. That is, if you have money already in their bank, and you want to take some from your current or savings ac

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