skysight-inc/HackerNews huggingface dataset:
from: http://docs.mongodb.org/manual/reference/server-status/

serverStatus.workingSet.pagesInMemory

pagesInMemory contains a count of the total number of pages accessed by mongod over the period displayed in overSeconds. The default page size is 4 kilobytes: to convert this value to the amount of data in memory multiply this value by 4 kilobytes.

If your total working set is less than the size of physical memory, over time the value of pagesInMemory will reflect your data size. Conversely, if your data set is greater than the size of the physical RAM, this number will reflect the total size of physical RAM.

Use pagesInMemory in conjunction with overSeconds to help estimate the actual size of the working set.

Also, there's a discussion of working set in this guide starting on page 9: http://info.10gen.com/rs/10gen/images/10gen-MongoDB_Operatio...
My impression is that simply having an extension mechanism inevitably leads to this problem.
Seems pretty interesting but after I certified for being an investor I got this:

Startups Fundraising
Get first access to hot deals. 7 days left.

with no start ups listed. It seemed like there were a few presign up...
My problem with BTC (and I say this as a supporter) comes from a pg essay - you make what you measure. The BTC community measures BTC/USD exchange rate so it ends up optimizing for that, but I can't understand how focusing on that is a good thing. It already produced one massive crash and we're in the middle of another one.

The actual number (BTC/USD) is mostly irrelevant, but volatility is quite bad for people who actually want to perform transactions with BTC. I hope BTC is able to get over this and continue growing.
I might have already found something by then. But please do check with me again.
Yes, HiDPI, whatever you want to call it, doesn't change my point.

Also, Kleenex is a brand name but if I ask for a kleenex people know what I mean.
I've been reading off and on about Bitcoins on HN for a while and had no idea that they could be broken down into smaller units. From Wikipedia:

"In trade, one bitcoin is subdivided into 100-million smaller units called satoshis, defined by eight decimal places.[4]"
Oh, great! Now I'm suspicious!
Am I missing something or did the date change? Looks like this happens on April 8th, 2013.
Animations on graphs have come too far. But i can agree with you on some part that at a few places animations are not needed.
If you look at the documentation (http://www.chartjs.org/docs/) then you can choose in the configurations to switch it off for all the graphs.

Total power !
People should probably realize they don't need Sendgrid at all. There are plenty of competitors out there, why not switch today?

Amazon SES
Postmark
SocketLabs
MailJet
Mailgun
Postmark
Mandrill
PostageApp
Postmark
I win at ugliness:
http://i.imgur.com/VFHftsC.png
> spider.io has observed the Chameleon botnet targeting a cluster of at least 202 websites. 14 billion ad impressions are served across these 202 websites per month. The botnet accounts for at least 9 billion of these ad impressions.

The odd thing is that either these sites are already very big, or there are others ways they are getting 5 billion ad impressions.

A list of these 202 websites would be informative. I guess a number of them could be fake, to throw the scent off?
I have very little knowledge in this domain, but why do so few of these demos ever have sound? Is there something lacking with canvas and sound/music?
Thanks. It's still an early idea at this stage. Appreciate the feedback. Will definitely look into the contrast issue you mentioned.
SecondMarket is a different animal -- they structure liquidity tenders for late-stage private companies and collect portal fees per seller, and, in the past, ordinary secondaries transaction vigs. They also run a large, traditional financial services business that has historically paid for much of their involvement in the startup world.

Funders Club is also a somewhat different animal -- they offer investors access to venture funds where risk is pooled, and also do single-purpose funds that resemble your product.

You are exclusively offering investors access to one investment and one set of risk. Let's say you can get it down to $4k/yr:

* Accountant to prepare and send out K1s to 50 shareholders $1000

* Delaware agent & franchise tax $400

* Legal, regulatory filings, 4 hrs $1000

* Your or your lawyer's time to give legally binding answers to questions from 50 shareholders $?

* Valuation analyst hired by you or firm, 5 hrs $600

* Broker dealer / misc / insurance $1000

These numbers sound pretty low to me but let's say you have economies of scale.

Making money solely when investors make money still seems like a reach. If you make 100 investments per year and have a decent team you will be burning a lot of cash -- the only way to recoup that cash will be to charge a transaction fee or keep raising money until carried interest pays out (which it often doesn't). Either way, it's something you should address in your disclosures.

It's one thing not to have a fleshed-out revenue model if you are a consumer site: nothing will happen if you die except for some upset users, but you can't just suddenly unwind a group of 400 investment funds when the underlying capital is tied up in illiquid private stock.
Scientists Take Big Leap To Resurrect Extinct Frog Species
And here I thought third wave feminism was sex-positive.
I don't see where the moral obligation comes in.

It's great if somebody wants to give out their source code, but to turn around and say it creates a moral obligation towards them is disingenuous. It's a little nonsensical, even. If they expect something in return for the code then they should ask for it up front.
Ask HN: Are short-term internships/junior-positions possible?
The "standard" internship tends to be something like 3 months long. Is it ever possible to get hired as an intern for 2 months, or even 1 month?

I'd also be interested in knowing if it is also possible to get hired for junior developer positions for periods of 1-2 months. Obviously that does seem like more of a contractor relationship.
Why can't they apply similar interpretation to legalize re-importation of drugs? The arguments there are similar ( "drugs are expensive in US to subsidize foreign markets").

This is also another blow to the academic publishing racket. In response, they might stop publishing cheap international editions. I hope the availability of high quality open source textbooks and material from MOOCs will cause the developing world to adopt them instead. However, there is a chance that pirated copies - either digital or facsimile copies of US editions - will flood the asian markets. This already happens today but at a small scale.
'Hacking' Chinese Inflation in Real Time
I think you underestimate the volatility of bitcoin. Right now there's not enough you can do with them in their native form, and converting them to cash would make make the price crash. I also doubt there's any exchange with enough funds to actually support such a conversion.
I have never seen a screen name and comment go better together.
I'm really happy to see this project resurface, I had already added it to my "must check out" projects. Glad Nick pulled it off.

I don't care about the how and why it's back, I'm just happy that it is.
>For undergraduates, who traditionally pay for their own tuition, or for graduate students under scholarship, they own all of their own work.

This depends on what the work's being done for. If it's for a class or a credit giving research project, the university usually does own the IP in most cases.

However, if it's a side project that's not using any of the university's resources, the university shouldn't have any rights to it.
Silence is a Commons (1983)
What is API User Experience
There's nothing stopping you from doing that with a pinch of javascript.
i can't confirm if these are true or not but some details may be in here:

http://storify.com/adrianholovaty/malcolm-tredinnick-memoria...

very sorry for his friends, family, and the community.
Github leaks 1500 enterprise emails
Austin is the self-proclaimed 'live music capital'. I lived there for 8 years, and, to my understanding, spontaneous performances anywhere will be shut down not matter what time of year it is, and especially if its on private property.

Really, its pretty reasonable. With 40,000 undergrad students flooding into the city every fall, you have to keep crazy kids from playing impromptu shows on the street... even more so during SXSW since those are the same kids that want to be 'discovered' by record labels...

... or was that last decade when that mattered?
Just applied to put $1k into a YC company that I was very impressed with.

I hope this becomes the default for YC companies. Fuck the VC's - invite the public to demo day and crowd fund the seed rounds!

Quick math: investing $1k into Facebook with the same terms would be worth over $8 million today. For Dropbox, over $600k. For an OMGPOP-sized exit, $25k.
Visual Studio and Windows aren't software as a service, and I suppose the argument in traditional client apps is that "the advanced features cost a lot more money to develop, so we need to recoup that cost". Neither case is as egregious as starting everything at a high-level baseline and then intentionally decreasing/damaging some parts to make them into "lower-end" models. Software is usually developed the opposite way -- you start at the baseline, get something together, and then say, "Oh, what about feature X? That'll take a while to develop..." and some guy says "Well, we can make it a premium feature". It just doesn't have the same feel as nvidia's hardware hack.
Actually I am claiming that detailed knowledge of old things has never been "in" to begin with. HN seems to harbor a great breadth and depth of knowledge and I don't think it represents normality in our industry.

Failing fast is nice, but a more measured approach might result in less of it. When it comes to storage and email, people are surprisingly unwelcoming of failure at any speed. If a little study can avert a few catastrophes it's worth it. I think ours is probably the only industry that would question the wisdom of study.

By positioning history as in conflict with raw experimentation, naive excitement and all the rest, I think you're engraving the line in the false dichotomy. Is a week or two of research sans coding really such a high price to pay? Personally, I find there are a lot of really inspiring ideas in old stuff, ideas that strike me as newer and more exciting than "embed Javascript in X."

Are young developers' egos really so fragile they can't weather having someone with experience say "fsync should be on by default"? Is cracking open the source code to BerkDB really such a deflationary moment that it threatens our industry's progress? I, personally, think they can handle it.
It already produced one massive crash and we're in the middle of another one.

Why do you believe a crash is forthcoming?

The actual number (BTC/USD) is mostly irrelevant,

Why do you believe it is irrelevant? The market capitalization is only 500 million dollars. Can you imagine operating an entire economy with only 500 million dollars? It's a proxy for adoption, although that is muddled by price speculation and so on.

but volatility is quite bad for people who actually want to perform transactions with BTC. I hope BTC is able to get over this and continue growing.

The bitcoin economy is very tiny. Google probably makes more money than the entire bitcoin economy in a year several times over. Of course, it's going to be volatile. That's because we are growing. It would be a more legit concern if that the economy is worth 100 billion dollars or a trillion dollars.
I want a really cool project to work on
I wrote this post https://news.ycombinator.com/item?id=5321343, have taken some time to relax and now I am more motivated than ever to write as much code as I can. I have a lot of ideas but besides that I have a lot of time and passion to make something good. I have browsed projects on Elance for like 10 minutes and said hell no. So I post this on hacker news if someone has a cool project for me and I really like it I will even work at a lower rate or maybe in exchange of equity if I find the project to have a solid business plan or maybe just contribute to your open source project if I find it interesting. Recently I started loving node.js, but also I can take projects in php, ruby or maybe hit me with something new like scala or python because I also want to get my hands dirty with these programming languages. No HTML/CSS stuff plz :)
The appropriate counterexample here is which is easier to read, "a plus b" or "aplusb"? :)
> we're in the middle of another one.

Can you back that up somehow? It seems like we're in a rally based on the price.
I haven't followed html5 development too closely, but audio support in current browsers hasn't been uniform. I'm guessing the lack of one size fits all for audio in browsers is why.

http://en.wikipedia.org/wiki/HTML5_Audio

edit:
I'd also guess because audio is hard and that it is probably easier to make graphics and gaming logic than making sounds/music properly.
Ok, is this the best marketing campaign for an open-source project or what?

Don't think so:

@_nnnick This is all just one big marketing ploy, isn’t it? ;P

@DanHarper7 wouldn't that have been amazing? I'm not that smart though unfortunately.

https://twitter.com/_nnnick/status/314049798502248448

Edit: Apologies, I initially took your comment as cynical towards Nick :(
maybe http://scholar.google.com/scholar?hl=en&q=+%22haskell+me...

or: http://www.doc.ic.ac.uk/~amc4/Papers/thesis.pdf
The problems with your comment are numerous. I'll list them off in order of sentence number:

1: Strawman; assumption of binary plus suggesting Adria's post is asking for an extreme solution ("100%"), rather than being aware of context and being sensitive to these issues.
2: False assumption that your female friends all don't care about your potentially sexist remarks. Chance is greater that if they do, they wouldn't admit it to you. Furthermore, you make a wrong accusation that because your female friends don't speak up when you make bad jokes, Adria is being unreasonable in her post. Adria is completely reasonable and accurate with what she's saying.

3. You continue making wrong accusations. There is a difference between "sense of humor" and being offensive. You can be both funny (to some) and offensive (to the same and/or other people) at the same time. If you are offensive on something, you deserve being called out on it, however funny or not you might've been in the eyes of people. You also don't seem to understand your own point. Being treated like equal human beings means treating people with respect, and making degrading, sexualized jokes at a professional event is not treating people with respect.

4: If you want to have a "private conversation," leave the conference/event venue and retreat to somewhere private. This was not a private conversation as it was in the middle of an audience at a public event, in a public space. They were surrounded by people. There was nothing "private" about this conversation. Whispering or talking softly while you're amidst hundreds of people does not make your conversation "private," it certainly does not grant you immunity against shitty behavior that doesn't have a place at the event you're at.
One thing not mentioned in the article: you don't have to render everything on a single canvas, you can use multiple canvases as layers. This is specially useful to separate what is updated often with what changes rarely, for instance the characters layer, the background layer and the HUD layer can potentially have very different update rates, so it makes sense to redraw them at a different pace each. In fact, you can also get creative and combine DOM elements with canvases.

These tricks matter because redrawing the entire screen every frame is usually an expensive operation; this is not noticable on small examples but it can become an issue on larger, more complex games.

Great article otherwise.
Why Raspberry Pi is Transformative Technology
Keynote address at PyCon 2013 on Raspberry Pi by Eben Upton.
Probably because that's harder or outside of the scope of a demo. The first search result for "html5 games sound music" was this case study: http://www.html5rocks.com/en/tutorials/webaudio/fieldrunners...

From the first paragraph:

"Fieldrunners is an award-winning tower-defense style game that was originally released for iPhone in 2008. Since then it has been ported to many other platforms. One of the most recent platforms was the Chrome browser in October 2011. One of the challenges of porting Fieldrunners to an HTML5 platform was how to play sound."
I think this partly stems from the term "Bitcoin" itself, since coins are not divisible (having moved beyond pieces of eight long ago). But there are no coins in Bitcoin! It's all just txouts and txins.
'Laravel: Code Happy' by Dayle Rees
There is plenty of free events to see without a badge, but, you do need a badge to see the panels.
Despite it rising who in the right mind would hold bit-coins besides for speculation? The exchange rates are so variable. As a very risky investment great idea but day to day currency? I suppose it isn't a bad way to pay people abroad and avoid foreign transactions.
Well, don't forget, they bought Zagat. So even if it doesn't look like an ad, 'recommendations' are probably just another form.
I agree that interoperability with open standards is very important, but your first statement is beyond hyperbolic. Do you really think support for XMPP and CalDAV are the company's most valuable assets?
Proof:
http://chart.apis.google.com/chart?chtt=Pie+charts+are+great...
So the students should pay that cost? That is absurd. The school should either pay the teacher more or lose them. The financial burden of keeping the professor there should not be placed on the students outside of their tuition.
Nice work! The JS breaks on magnification, but I submitted a pull request to fix that right up: https://github.com/nnnick/Chart.js/pull/27
d3 is amazing. There is no doubt about it. If you have a decent amount of time then perhaps you can start with this http://christopheviau.com/d3_tutorial/

A more simpler & easily configurable option is definitely RaphaelJS (http://raphaeljs.com/). Be sure to check out g.Raphael as well (http://g.raphaeljs.com/).

Other than this, i have previously worked with Rickshaw(http://code.shutterstock.com/rickshaw/) as well. Although, i found it incredibly easy to implement, i personally find it a little poorly documented and found less resources and difficult to modify and play around.
With HTML5 canvas, be sure to check out the new ChartJS (http://www.chartjs.org/).

If in case, you are ready to shell out then HighCharts(http://www.highcharts.com/) and perhaps FusionCharts(http://www.fusioncharts.com/) are the way to go. Personally, i think i would go with Raphael.
Keep learning new stuff and make things just for the fun of it.
Her website is called "butyouragirl" and you don't see what she has to gain by shaming men developers? She calls herself an "activist" but uses the fact that she is FEMALE to get ahead, as opposed to the quality of her work. Joan of Arc would be rolling in her grave.
You don't understand Pick databases very well then. They supported types and could enforce them. Some Pick-style databases were weaker in this regard than others but there's nothing inherently typeless about the Pick database.

I wouldn't call Pick databases schema-less, either. Pick databases called their schema a dictionary. In a Pick database the dictionary is less strictly enforced than in a SQL database but it's not schema-less.
Time for the bigotry test:

Lets reverse the genders. It's a woman making the sexualized comments to a friend, and a male attendee eavesdrops. Then he takes a picture her without her consent. Immediately posts said picture online. She loses her job.

What would the response be?
About Bitcoin Mining
The bottom sign up form actually increased our conversion. :)
that doesn't really work.
There's no evidence this was a "pick up line".
I don't underestimate the volatility... I watch the price very carefully, and understand how volatile it is. Bitcoins are converted to USD and back to BTC every day. If you were to try to sell ALL the bitcoins in one day that would clear out the order books, and would likely cause a crash and then rally, much like we saw when there was a bug in the blockchain. The price dropped to $37, and quickly went back to the original price due to the demand.

The volume of MTGOX-USD is $69M for a 30 day period, which is about $2.3M a day. Source: http://bitcoincharts.com/markets/mtgoxUSD.html
I suspect people follow pg's submission.

https://news.ycombinator.com/submitted?id=pg
I don't listen to anything. I like that more than listening to music.
To get the other side of the issue, you have to go back to the 1930s and read F.A Hayek's critique of "The Paradox of Savings" ( http://mises.org/daily/2804 ). Hayek, incidentally, was an advocate of competing currencies.
This list of sites will change in 60 days. This sites are like pop-up store fronts for ads.
Bellard has updated his site since this was made.
The Newer version has an IDE disk.
>Oh, how convenient. Save the crux of the argument for another time. We'll all be patiently holding our breath.

Are you suggesting vegetables aren't more nutritious than grains on the whole? Don't get so anti-paleo that you stop thinking yourself. If you were raising a child, would rather he/she eat a plate of vegetables or a plate of rice for a meal?
Bitcoin is here to stay, can't deny that, but I believe e-gold will be the future e-currency if somebody nails it.

Buy gold shares with your dollars, use it as e-currency, exchange it for e-goods, merchants sell the shares and get dollars back.

I'd invest money in that venture, and money in that currency.
Samsung's Advertising Success vs. Apple's Front Runner Blues
Jimu: Building Blocks For Your Android App
You have to say his name 3x.
Arguably Bitcoin may have never been adopted at all if not for the enrichment of early adopters. As much as I dislike bubbles there is a real benefit to creating them.
Pick-style databases were a dominant technology from around 1973 until relational databases (led by Oracle) marginalized them, more or less. Pick databases are still widely used and I run into legacy applications all the time, especially in publishing. There's a decent Wikipedia article on the Pick operating system if you're interested.
Pattern analysis: Curiouser and curiouser
Here's the source of the Chameleon botnet details:

http://www.spider.io/blog/2013/03/chameleon-botnet/

comments: https://news.ycombinator.com/item?id=5400573
Except parasites have no central control or a will to do anything beyond survival.
Cyprus parliament rejects the bail out
I would have a lot more interest in what this blog post said if the page actually had good performance.
I'm a bit confused by this...why did you fund Wefunder then? "Amateurs" are exactly the people that will be funding startups on Wefunder...
Raising seed money from big VCs increases survival
Well, no; the point is that the legal tender status of US dollars is only relevant if and when an outstanding debt becomes the subject of litigation. How often does that happpen?

Further, an agreement could say something to the effect of "borrower will repay lender the sum of $1000, or 50 BTC", stipulating an effective exchange rate that makes repayment in dollars entirely unrealistic.
How does a currency market "optimize" for an exchange rate? What does that even mean?
It's easy to change a relational schema if you understand relational databases. If you don't then Mongo et al. look like good ideas because they solve an actual developer problem: ignorance.