skysight-inc/HackerNews huggingface dataset:
Ask HN: A real-time android version
I have 0 experience in Linux kernel development and related fields. I wanted to know from experience developers if it is possible to apply RTAI patch to android so that I can run some real-time tasks from android based devices.

This is a research problem I am supposed to work on hence my main concern is if it is possible and not things such as performance and so on. There is very little work done on this front so far.

The larger problem we are looking at is to build a info-entertainment system for an automobile, which can even have a specialized Car App-store. At the same time the same hardware should be also able to handle some hard-real-time tasks.

Since were in the very initial stages of our project I will be happy if you guys can give pointers links to even a bit tangential topics.
http://depts.washington.edu/aimgroup/proj/dollar/
Ah I believe that issue occurred before when you're on Linux only. It should be fixed now.
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Social Media and the London Riots
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I think it is necessary to mention Saudia Arabia because it's much worse in Saudi Arabia. I'm sorry if there was a misconception that I was implying that all Turks drive 'by inshallah', which of course isn't true, they just tend to drive badly - those in Istanbul drive aggressively (or insanely, by the standards of some other places) out of necessity. Those out in dogu anadolu drive as though they're still out in the villages.

As an aside - I don't know anyone who cycles in Istanbul. Is there a cycling commuter community there?
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Great Insight.. Thanks..

Its Not only about investors. I hope Valley has lot of talent and product guys, which may fuel us being the part of the network.
in fact to reiterate have a look at the awesome fibonacci example showing power of generators [1]:

def fibonacci(max):
a, b = 0, 1
while a < max:
yield a
a, b = b, a+b

To run the function do:

>>> for n in fibonacci(1000):
... print n,
0 1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987

[1] http://diveintopython.org/dynamic_functions/stage6.html
This type of comment is not desired here. Take it to reddit.
GPS and the end of the road
Notes on surviving today's EC2 outage
They don't pick the story titles; Techcrunch does.
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Your suggestion confuses an epistemic limitation with a metaphysical one. Just because no one knows what we're going to do next doesn't mean there isn't a fact of the matter about it.

While the idea of God looking down on us from on high is a compelling story, if you take God away but leave determinism it doesn't do anything to resolve the problem: our actions are still pre-determined and cannot be changed.

Of course, whether or not that makes us free is a further question. A compatibilist [1] would claim that we are.

[1] http://plato.stanford.edu/entries/compatibilism/
It is getting increasingly difficult to just invest in companies you believe in.

Uh, I think it goes:

Buy stocks when it's cheap in comparison to your valuation metric and hold. Collect dividends, or if the stock becomes too overvalued, sell for profit. Start from beginning.

What did I miss?
I would much rather that a patent not be granted until a product exists. If someone else beats you to market, to bad so sad for you. Patents exist to encourage innovation, and I don't see how that goal is furthered by letting someone sit on an idea without using it to the detriment of someone that is actually ready to do something with the idea right now.
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I really liked this commentary
http://www.guardian.co.uk/commentisfree/2011/aug/08/tottenha...
although you might disagree with him, at least it states quite clearly a reason why are people rioting.
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This is a great article.

A good portion of my day to day work involves handling JS memory leaks, due to the growing reliance on JS for behaviours, interactions, and application logic (sometimes an over-reliance, IMHO). It's sad that most of the JavaScript developers I interview have no real idea what causes or how to fix leaks. We could really do with making the community more aware of this stuff!
Ubuntu 11.04 (GNU/Linux 2.6.38-10-generic x86_64)

It's mostly a (very low-volume) mail and web server. It's got ~200MB of web, about 11GB of "cache" files for a photo app I've got (about 31k files totally 11GB). I do a little bit of low volume S3 log processing on it every hour. My home directory is 2.5GB with about 107k files (that includes dropbox). The IMAP store is approaching 2 decades of mail with about 239k files totaling about 4.4GB of data. /root is a bit under 500MB with duplicity caches and stuff. Less than 300 files there.

I also keep a few snapshots I take every hour. There's a total of 347 snapshots across all the subvolumes (there are three).

Filesystem Size Used Avail Use% Mounted on
/dev/sda3 142G 102G 37G 74% /
none 2.0G 192K 2.0G 1% /dev
none 2.0G 0 2.0G 0% /dev/shm
none 2.0G 60K 2.0G 1% /var/run
none 2.0G 0 2.0G 0% /var/lock
/dev/sda1 230M 69M 150M 32% /boot

Overall, it's a small atom box that lives a pretty boring life that I figured would have endless hard drive space given my patterns. That does not seem to be the case.

Anything further I can tell you?
the last one was a lot longer than a 1/2 hour

About 25% of EU west instances have been down for about 36 hours now...
London riots - Twitter organized cleanups
Remember there is large EC2 EU West Outage that isn't fully fixed. About 25% of EC2 instances have been down for about 36 hours now...
You are right, however it is not bad to question a business model or the fact why YC put money in this idea. There are 1000s of these kind of services and a lot of them work really well and are very user friendly.

I do think there are valid questions here like; what is your USP and why did YC invest in this dime-a-dozen concept if you don't have a USP?

You are right, however it is not bad to question a business model or the fact why YC put money in this idea. There are 1000s of these kind of services and a lot of them work really well and are very user friendly.

I do think there are valid questions here like; what is your USP and why did YC invest in this dime-a-dozen concept if you don't have a USP?

Edit: you indicate non-tech usability as USP: a lot of others have that as well as rorrr indicated. He only names a few but there are really 100s or even 1000s that are more user friendly than Kicksend seems to be at this moments. So what is your USP?

Edit2: Too much TL;DR from me I see :) The desktop apps. Ok, going to sign up and check it out :)

Ah! Password picking is good! I get very frustrated when systems don't allow my passwords (and there are tons of sites which don't); my password generator is set to;

http://o7.no/oEYcxp

And by far most services complain about the length, the type of characters or whatever. +1 :)
> It's a great place to gain credibility with the
tech/entrepreneur/investor community and it also typically results in
other publications writing about you. YC companies launching publicly 2
weeks before Demo Day (probably) need both of those things more than
they need a few hundred more users.

True. Very true. Two weeks before Demo Day must be an insane time.

I see the only difference between you and I is, you are thinking shorter
term with _OR_ logic, while I am thinking longer term with _AND_ logic.
To be more clear, I want to craft the message to gain credibility with
the tech/entrepreneur/investor community, gain additional press, _AND_
acquire new customers. It can be done. You might be living with your
initial one-liner a lot longer than you ever expected; choose carefully.

On the other hand, you've lived through this particular insanity, so you
understand the pressure cooker the current batch of founders are in at
the moment. Expecting the founders, under pressure, to come up with a
one-liner that their mother could love might be unrealistic, but it is
advantageous.

> TechCrunch is a terrible place for consumer startups to try to find
customers.

Our opinions differ a bit on this, and considering who you are, it's
probably not the most wise decision on my part. ;)

It's the early adopters -- the enthusiasts -- found on the likes of
techcrunch, HN and similar that start the snowball, even on consumer
orientated startups. When you craft a message specifically for the tech
savvy early adopters, they understand it, but they can't use your
message to sell it to others.

It comes down to the, "All things bought are sold," idea, where when you
buy something, you sell others on it in some way. You might convince
them it's useful, cool, exclusive, smart, worthwhile, or whatever, but
you really do sell your purchase to others. A well crafted message makes
it easy for your customers to sell for you, particularly your early
adopters. Oddly enough, it works on investors and journalists as well
since they both have the need to sell their investment/article and
hence, sell for you. The need to sell a purchase is the reason why
one-liners exist.

In general terms, we agree, but my expectations are very high, and
admittedly, they may be unrealistic under the circumstances (launching
two weeks before fundpocalypse). None the less, keeping this stuff in
mind might be helpful to founders in the long run. I hope it is.
It gets better - I hope nobody was relying on their AWS DB snapshots for backups - I just had a note from Amazon to say that one or more of EU-West database snapshots had missing blocks (due to an EBS software errors) and had been removed.
Nah, it's a bad design decision. I've written more about it at http://monogatari.doukut.su/2010/12/lightweight-javascript-d...

Python does it right, though.
More screens also means less switching things around - at least it did for me. With three screens, I almost never switched windows around. With two larger screens, I find myself moving, resizing, and alt+tabbing all the time (or expose'ing which is "cooler" but not much better).

Regardless I think it's a matter of taking time to get used to the pros and cons of a monitor layout, and figuring out what works best for you. Personally, after about 6 months with the 2 big monitors, I still miss my 3 smaller ones and will likely switch back soon.
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It seems nobody has mentionned Gregory Chaitin[1] yet, and in my opinion it's kind of mandatory when discussing this very topic. So now it's done :-). I like his work a lot. His not really working on this subject anymore (now he's developping a new field called metabiology which is also fascinating but not very relevant here) but he used to work on Algorithmic Information Theory and he wrote a lot of books and essays (you can find almost everything on his webpage) on the subject we're discussing here. _The Limits of Mathematics_[2] might be the most relevant to Hacker News users.

[1] http://www.cs.umaine.edu/~chaitin/
[2] http://news.ycombinator.com/item?id=1725936
#python has been unrecommending DiP since before Zed wrote LPTHW. The #python dead-tree recommendation, for a long time, was How to Think Like a Computer Scientist: http://greenteapress.com/thinkpython/

Lutz' Learning Python dead-tree is also pretty great, from what I hear, although I haven't had a chance to sit down with a copy yet.
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Yeah, okay. You're right.
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This will sound condescending, but I'll say it anyway: Become the kind of guy who finishes things. Forget about the programming part for a minute. It's the finishing things part that's the hard part. If you focus on that, you'll master whatever details you need to get you there.

I like to think of finishing things as a demon I have to conquer. The last 20% sucks so hard, but if you do it, you'll be rewarded well, because most people suck at the last 20% too, and thus, never finishing anything either. Learning to be someone who ships makes you a rare person indeed.

I still struggle with finishing things, but I've gotten a lot better in the past year. The best advice I can give you is to "show up" every day and do the work, no matter what. Sit down x amount of time every day, butt in seat, and do the next things on your list of things that are necessary to ship. Not what's fun, not what looks interesting, not surfing the web or HN. The next thing standing in the way of shipping. If you can make that a habit, and do it without fail, you can't help but ship.
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What metric could you come up with that wouldn't be gamed? Other than say, overachieving profit targets. The CEO has a lot of latitude to screw the company for their benefit.
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I am in fact planning to move to Dallas later this week. 60ms of latency just isn't worth it.
Only a matter of time before coffeescript is natively supported by the progressive browsers, I think.
To put things in perspective, think of the following typical situation: Website relaunch for a small company, total budget is $4000, cheapest quote you got for penetration testing is $300. Good luck selling that as a line item to a client whose email password is "123456".
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Back in the good old days, you would actually run out of memory. It kept you on your toes unlike today when allocs rarely if never fail. Instead, everything just collectively gets paged out to disk, then sluggish and sloshed, and eventually inoperable. And at that point you really can't pinpoint it down to some stupid web page because everything is equally paged out by the time.

THe browser could turn memory hogging tabs to red. It could impose an absolute or relative limit to each tab's memory usage. Or what used to be nice in the old days, having each tab expose a function that causes it to minimize its memory usage, i.e. ditch any runtime data that can be recomputed later. But since webpages are programs these days, this interface ought to be negotiated between the browser and creators of web pages. Not going to happen.

Since web pages are sort of programs, I like the Chrome way of putting them into separate processes. Then let the operating system manage them: it's much better suited for that than a browser. Using setrlimit(2) to limit the amount of memory could be useful. Automatic killing and restarting of a web page upon hitting these limits would give an incentive for the developers to keep their pages small; or not keep them small but design them to just deal with these mandatory resets.
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You're off base. There is a distinction: objects are not hash tables. JS doesn't have hash tables, not natively. Object behavior might be implemented as a hash behind the scenes, or it might not— V8, for example, does it with hidden C++ classes in a way I don't totally get that's described here: http://code.google.com/intl/sv/apis/v8/design.html#prop_acce... . This has the (purported) benefit of being actually faster than hash lookups. Yes, really.

If you desire some piece of behavior you're used to from hash tables in other languages, you can of course implement that yourself on top of the JS object. Or you could learn to live with abstractions that don't leak.
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Another check list posted a while back (http://news.ycombinator.com/item?id=485553)

http://www.boxuk.com/blog/the-ultimate-website-launch-checkl...
Exactly. I did just this, and still my algorithm supposedly gets only 4/15 test cases correct. The algorithm is pretty simple, and I tested it extensively against the naive O(n^2) algorithm on a bunch of random test cases and it always prints the same thing, so I'm not sure where it's going wrong. My one consolation is that no one else seems to have solved it either yet... Ah, the joy and frustration of programming challenges.
Kenneth Cole Talks 'Antisocial' Social Media, New 'Where Do You Stand' Site
Kenneth Cole Talks 'Antisocial' Social Media, New 'Where Do You Stand' Site
Preview images from your right click and convert them.
This is good enough :) Now learn to get them working on Wordpress and you will be making more than $5 / day for sure. You can sell links in the footer or you can sell the entire theme as unique theme or limited theme. Depending on the time you spend to build themes, you'll make nice money, even while undercuttng the competition.
Have a look at pnacl - LLVM executables in NACL sandbox:

http://nativeclient.googlecode.com/svn/data/site/pnacl.pdf

http://www.chromium.org/nativeclient/pnacl
What features of Java have been dropped in Scala?
Ask HN: Are the Social Media buttons converting better now on TechCrunch?
I noticed that TechCrunch started loading in the social media buttons on hover of a story. I remember many of us complaining the site lag due to all these social widgets (aka like button, tweet button etc.). I wonder if as a side effect of loading the buttons of hover if more people click the buttons.

Any insights on conversions like this from HN?
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That's because you thought it meant something it didn't. People should be allowed to critizise. Without you telling them how friendless they must be.
It's not a hash table. These are features which JavaScript objects don't have (in current implementations), but if you need them, you can implement them yourself. Conversely, of course, the prototypal behavior of objects is insanely powerful, and you'd do yourself a favor to stop thinking of them as "hash tables".
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I know I'm repeating myself now, but JavaScript is not Python, objects are not dicts, etc. Of course whether or not that's poor design is its own conversation.
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Tough one. Few suggestions:

#1 Track your time for few days and categorize each minute of what you do. How many of them are productive and pushing your business forward? In most cases 20% of your time is bringing you 80% of the gains. Pareto principle.

#2 Are you focused on few important things or your focus is spread to too many things? In most cases it is better not to do somethings rather than do them badly. Focus on the 20% from the point #1.

#3 Do you get enough rest and fun? If you work too hard you are less productive and with exhaustion it takes you 2-3 times longer to complete tasks than that you would do with enough energy/rest/focus. Have at least one day off (or 8 consecutive hours) a week and try to relax few times a day with one bigger break and several smaller ones.
Hmm.. I think, the world doesn't need another tied slaves.
I think GitHub also supports Subversion by now, maybe they missed that?
The costs of advertising a service like "Hipmunk for X" are tremendous.
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Ask HN: pros+cons of private key root ssh logins
What are the security pros and cons of

(a) disallowing root logins over ssh; requiring the use of su or sudo to acquire root privileges

(b) not installing su or sudo; allowing root to login over ssh by private key only; that private key not being held indefinitely in a ssh agent but loaded temporarily when needed

?
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