skysight-inc/HackerNews huggingface dataset:
Yes, and they aren't particularly relative :-)

But to answer your question you can get pretty close by translating into units of watts and remembering a couple of simple rules.

Rule one is you only use 80% of the provisioned power (this is a safety rule with respect to things like circuit breakers and infrastructure, it keeps random surge events from destroying everything).

Rule two is that your power use efficiency (PUE) ratio determines how much cooling you need.

So lets say your PUE was 1.3 (that means total power / computer power = 1.3, the extra going into cooling) and you were building a 10 Megawatt data center. Well you have 8 Megawatts of actual power (80%) and 8/1.3 or 6.15 Megawatts for machines. Going by 750 watts per server (the PSU label [1]) you can put 6.15/.00075 = 8,200 servers into that data center. At 500 watts/machine you are 12,300 machines. So to make the math easy lets say it is 10,000 machines.

If you servers cost you $5,000 each then you're at $50M in server hardware for a 10MW install. Network switches are $100/port (assuming you're not doing 10G ports) and cable is way more expensive than it should be adding another $20 per port to connect it to the switch, so another $1.2M there. You need to hold them in something and rack solutions go from the less expensive (4 post) to the more expensive (fully enclosed) with a range of $500 - $2500. How many you can put in a rack will change your per machine rack cost up or down, but its somewhere between $25 - $125 per machine so another $1.2M so lets be generous and say our $55M for your 10,000 machines which are going to consume 8MW of your 10MW provisioned power.

Building the data center though, especially if you include land acquisition, that is going to be pricey (of course you can write it off over 27.5 years but still) If we start with the fact that a data center is really just a big warehouse with a cold box inside, we can look at building a warehouse [2] and some folks have some priced out [3] which put it about $50 - $75M range, and that is before you add cooling, back up generators, and pay the local utility to run a 10MW power line into your building. I got some estimates from Crane for a 'pocket' data center project I was looking at (about 3MW) and those extra costs are probably going to exceed $100M (split 33/33/33 into cooling, back up power, and secondary construction).

So back of the envelope 3:1 construction costs over equipment cost. And maybe $20M per constructed MW of compute.

[1] This isn't what you would do since machines don't consume that much, they can only not consume more than that, but whatever.

[2] http://www.reedconstructiondata.com/rsmeans/models/warehouse...

[3] http://www.mohavedevelopment.org/media/docs/One%20Sheets/Moh...
Really like your plugins on CC. I sell on there too but don't get close your number of sales. Do you have any tips or advice on how to increase visibility?
I have God. Mine will last 1,000 years.

God says...
store acceptable emptinesses elevated patience litigation
diligently threats roses_are_red moon interest refresh
self-confidence meant society faces presented outrages
sumptuously conceive right-doing exuberance clasp solemnise
exultation swine Somalia royalties perversion approved
intermitting Enricher gentle exquisitely Mothers asterisk
tamer deepness woot grossness plenty Guinea barked as_a_matter_of_fact
females deem consulting FBI submitting forethink plant
hung dispraise Singapore chiefest idleness buildings Guardian
Already Catholics broughtest Only gates goest lucre garb
Vermont presuming startles consider completely Readable
expose Heaven shame inebriated Mexico
I'd actually really love to take a course like this, but a non-profit foundation charging $2750 for a virtual 4-day course?

I understand that they have probably have access to incredible kernel expertise, and hopefully the teaching is excellent, but even that doesn't warrant nearly $3000 for a 4-day course.

I mean, even training companies in the pharmaceutical industry doesn't typically charge quite that much for short courses! They're probably close, but is that really who the Linux Foundations wants to model their pricing on?

It's great if they can find corporations that can pay these kinds of prices, but it means that independent open source developers are virtually shut out, which means that many of the very people who would be interested in making contributions to the kernel will not be able to take what is probably the best introduction around to kernel programming.

Does anyone know of any good alternative resources for learning the kernel? There's a lot of good stuff on kernelnewbies.org (when it's not offline). Other ideas?
Valve announces SteamOS, a living room operating system for games
So far, nobody has demonstrated an attack that is able to break the fingerprint reader by reading fingerprints off of the device (or another surface). The attack demonstrated by CCC requires them to take a high resolution photograph of your finger. It is likely substantially harder to just lift a good enough quality fingerprint to defeat the system.
500 million * 0.00024 = 120,000
In knowledge industries, it's frequently a case of long term versus short term interests. Take training... It rarely pays off in the short term (when you have the cost) but it frequently does in the long term. Another example is severance. It doesn't pay in the short term, but abusing folks on the way out doesn't pay in the long term either.
It took me maybe 3 weeks (3 to 5 hours a day) but I experimented many solutions (APIs, sharing, Vine...). I used RubyMotion and I had prior experience with the iOS environment.
While Shyp might be a great company (it seems like a great idea), I worry about this being the start of a flood of dumb money into startups. I wouldn't consider myself knowledgable enough to invest in a new startup and I follow tech news; what happens when everyone with a few extra dollars tries to spot the next Google?
Can anyone discuss their experience with Ansible versus Chef + knife-solo?

I found Chef clumsy and hard to set up on its own (its central server requirement seems like it was designed just to support a business model), but with knife-solo it's extremely usable.
I think some of his writing is brilliant, but it is impossible to consistently come up with brilliant material on a schedule. However, if he were to publish a post only when he has enough insightful, original, and quality material, his posts would probably be weeks apart. Perhaps he wants to keep his blog more active than that, and does so by linking to others' writing deemed "good enough" in lieu of his own.

Personally, I like this approach because it exposes the reader to more sources which one can then subscribe to.
I make 1-2k/month from WindowTabs (windowtabs.com), I've been neglecting it, I think I could make a good bit more if I put some time into it. It's hard to say no to the consulting work...
Looks great! I'm really looking forward to see the fist SteamOS device.
How much time did you put into this upfront? Seems like the most "passive" item in the entire thread so far. Can I ask what book this is for? whats the lifespan of a solutions manual like this? Have you been selling it for several years or does it obsolete itself in sync with the aggressive textbook versioning schedules?
what are some of your main competitors? i know tableratings was big in the past but then got blocked out by pokerstars (and apparently now ftp as well).
If you're interested in how a simple version of unix works, I highly recommend checking out Xv6, a teaching OS based on UNIX version 6:

https://pdos.csail.mit.edu/6.828/2012/xv6/book-rev7.pdf
I've been curious because I was thinking of doing something that would host content; is it a legal nightmare if someone uploads illegal material? Is it common?
Steam is getting its very own operating system
State of mobile 2013 - a HUGE infographic
Your progress bar active areas have two percent signs in the width property, which breaks them (at least for me) to all show 50%.
"Failsafe" is unnecessary. Come on, we call ourselves engineers here, right? A cardinal rule of engineering is to not let "perfect" get in the way of "good enough".
Google had a 5 minute outage this August, where global internet traffic dropped by 40%.

http://www.fastcompany.com/3015942/most-innovative-companies...
I suppose Apple devotes a lot of manpower and is very "active" in excluding all developers and applications outside of its walled garden.

Google is much different in that you have the option to publish on alternate app markets, or self-publish your own apps, of which Google gets a cut of $0. This lack of control over their own app marketplace is probably the cause of Google's flagging stock price and Android's failure to effectively compete with iOS in the mobile market.
I actually think 3g on tablets is rather silly now. With basically all mobile phones having the ability to share internet, why do you need to pay additional money for another mobile plan...
My wife just posted an eBook - Startup Financing, Equity & Tax, which might be of interest to some folks here.
Link: https://itunes.apple.com/us/book/startup-financing-equity-ta...

There is no sale data yet, but would be happy to share in the next thread.

Also, if anyone has any pointers on how to market an eBook, would love to hear.
It would be educational to highlight and comment on every sentence which is either contradicting another sentence in the same document, or suppressed by some actual law and regulations, or suppressed de-facto by actual actions of the lawmakers, police, army and courts.

My personal impression is that all modern constitutions are very much like bible or similar religious scripture. It has some universal values with many contradictions, and people in charge always bend the rules in their favor.
Well, it's your lucky day, because it does that. There's even a tiny bit of acceleration when it happens it seems. I was curious to see if anybody mentioned that in the comments actually.

I thought that was a very nice touch, since it would be easy to skip that.
Templates and host variables.

Templates use the jinja2 templating engine, so variables are represented by `{{ variable_name }}`, and you can put variables (as well as defaults) into Ansible configs to set them to different values for different servers.
Is it based on an existing distro?
Open ecosystem (Linux, hardware) + gaming = well done Valve, sounds good, I like it!
I generate about $900/month of semi-passive income from http://algorithmic.ly, but the initial setup cost is high. In the future I want it to be the goto-company for adding generalized algorithms to apps, products and services (provided as a service), but while I validate the market there's a huge initial setup cost (about 10 hrs), spent on data modeling, cluster deployment and secure key generation.
I'm not talking about whether or not the tablet can run Linux, but how useful the tablet input device (i.e. Wacom etc) is under Linux.
I am also wondering about this. I have an app selling at $0.99 and make a couple hundred per month in sales. It's hard for me to project how much ad revenue I could make, especially since I don't know how many additional people would use it if it were free.
That's one hell of a smart idea if they can pull it off. As an OS, it can run on a VM or dedicated hardware, which gives us users the greatest flexibility. Well played!
The fact that a bunch of people knocked down the same straw man doesn't make it any less of a straw man.
Does not say.
"SteamOS will be available soon as a free download for users" - you can build your own device!
Doesn't work on Chrome for Android
The platforms may differ, but a known version should be able to use the same config on the different platforms.
Reading on YC about investing through a YC company into YC companies.
So the Streaming functionality will be in both SteamOS and the normal Steam client? For both PC and Mac?

There might be a few interesting ways to utilize that. :)
that blog post looks and reads like a typical "make huge money working from home"/"buy this investment report" webpage for me. Even the similar green/lime colors.
Oh my god. This provides a genuine chance for year of the linux desktop in 2014, for gamers at least.
So I opened this in a tab without looking at it immediately and then forgot about it. When I opened it later I was legitimately worried that water had spontaneously started streaking down my screen, so really good job, you scared me, if even for one second.
No, I don't use either of those terms often enough to have an acronym for it.

(FWIW, apparently "SMB" means "Small-to-Medium Business".)
Until now, I didn't do anything for visibility. Making good stuff will suffice :)
This looks great. I'm just curious, what is the difference between wefunder and FundersClub.com?
> Typing "timer for 10 seconds" is similar to programming.

The Google Search field is the CLI of the web?
The article uses a different definition of the word "subsidy" than I would. Specifically, I would hardly call $350 in Retirement Fund Bank Fees a "subsidy".

Checking the references, I also don't see how the 1268 in increased prescription costs can be directly attributable to patents. A portion perhaps. And again not what I would call a subsidy. It also certainly does not come without a price (R&D) to the company.
The biggest benefit as I see it, is that the users won't have the hassle of setting something up: just install the OS and login. No drivers ppa, no recovery console, no xorg.conf patches. If this is true, Valve will do something very big for the gaming community.
GNOME 3.12 Will Integrate Systemd, Zimbra, Wayland Port
https://www.uncover.com has been up and running for about four months now. We're bootstrapped and doing a bit over $5,000/month in recurring revenue. I wrote a three-month recap on our progress last month: http://spencerfry.com/what-i-ve-learned-since-releasing-unco...
I'll tell you what will happen. I would pay for it! tunes.io is great!
If only it were open source... This is great nonetheless, though. It'll be interesting to see what directions this takes off in, both in terms of hardware and software.
VBoxer
Vagrant base boxe definitions to create custom ubuntu boxes.
"In SteamOS, we have achieved significant performance increases in graphics processing, and we’re now targeting audio performance and reductions in input latency at the operating system level."

I'm really interested to see the trickle down effect that this will have on other Linux flavors. Having a push for standardization from a big name company like Valve should provide a better Linux experience for everyone.
Cygwin + MinTTY can make Windows bearable, but, if you have already moved to Mac, why bother? OSX combined to MacPorts makes for a very functional development environment. The only very specific downside is that it won't run Visual Studio.

BTW, can the Pro 2 run Linux?
The end is near! windows should shake in its tiny boots
Because it supports external displays up to 3840x2160.

Edit: Sorry, misunderstood your question!
The idea itself is not novel as such. Just like every other company the difficulty is having to disassociate yourself from Windows. As it stands the store relies heavily on Windows titles. The real feat would be if they managed to get the whole catalog across to SteamOS by under the hood cross compatibility layer.
wOOOOOOOOOO!!!

If that works on normal machines (like, my laptop), I will kick Windows for good finally!
I really hope that this will be seamless. I would love to keep a beefy windows PC in the basement as a headless machine to run windows only games from and stream them to TV or Macs from there.
128GB minus whatever OS overhead there is... I know it's a nitpick, but definitely something to keep in mind.
Scheme implementation techniques - Froscon 2013 -- 2h webm
I'm somewhat disappointed. While perfectly logical for Valve, it might end up being not very beneficial for other distributions. In worst case scenario, hardware manufacturers cherry pick specific devices ("steambox") and software ecosystem to support (SteamOS) while totally neglecting all other linux distributions.
Announced over 6 weeks ago at http://googlesystem.blogspot.com/2013/08/google-timer.html
Justice is equality, not reservations.

There are two people, Person A works very hard, Person B doesn't. In a exam, because of the registration number system both are anonymous. Now if Person A scores above Person B. I don't see why B must get a seat above A? For what?

Social justice is to give people what they deserve corresponding to their efforts.

>>Indian popular media and the justice system which are disproportionately occupied by the elitists

By elitist you mean people who work hard and make it big in their lives?

And 60+ years of reservation system hasn't changed anything which says volumes about the problems with uplifting weaker sections of our society. If you give some one an option to get something for free, they take that rather than working for it.

Net Result? You get people who only look progressive but are actually not.
It's either OpenSUSE or Ubuntu based.
Does ansible have some sort of REPL so I can use it for both manual administration and automated? I use shellscripts for a lot of stuff because they're just bash one-offs with seniority.
To nitpick, his example is slightly different. His goes through server by server and then does the 2 lines (if they match the name). Yours does the first task on all the webservers first and then the next part on all the qa_servers.

In theory should produce the same output, but if something relied on doing it the first way that would be the difference.
I now resign myself from speaking to Apple people anymore I am just way too busy for this crap. Check my facts check this.
I Quit Teach for America
The rumors of a Steam Box based on Linux have been circulating for a while now, but earlier Valve came out to say they had no plans to enter the hardware business.

I love this solution. Those of us comfortable with building our own Steam Box can do so easily, and manufacturers can also build their own models. In every case, the Steam store will certainly be sewn into the very fabric of the box, and Valve emerges a big winner.

This is what I've been waiting for to build an HTPC/PC gaming battlestation... I've (personally) always preferred gaming with a controller while sitting on a couch.
Thanks so much for the feedback, really nice to hear that people who haven't seen the site before think we're doing it right :)

For the record, if anybody thinks we've made a huge mistake on the site I'd love to hear about it!
Turn Promises of Future Work Into Opportunity
Not open source, however. Not a dealbreaker, but an important distinction to keep in mind.
It's their way of telling Intel it's giving too much support to Linux and Android...

"We'll support your competitor if you support ours"
The Balanced Designer: intro resource for aspiring designers
And AngelList, if I might add?
Built in USB (i.e. use something like the ATmega32U4) or a custom USB chip like they started doing with the Arduino.
Where did they get an arbitrary 154 calories for a pint of beer? Calorie count is closely tied to style and alcohol content. A few examples:

Bud Light: 109 calories in 120z.
Dogfish Head 90 Minute IPA: 294 calories in 12oz.
Weyerbacher Merry Monks: 279 calories in 12oz.
The streaming of other OS games from your other OS systems seems like a pretty compelling and surprising feature. I wonder if it will work with all games.
I've been considering selling on other sites (maybe Amazon) and/or doing some limited affiliate deals, but I haven't put any serious work into it yet. What sites were you thinking of?
I tried using Windows 8 with a TV and it’s almost there but not quite – if they fix a few things it would be perfect:

- At 720p you cannot run Windows Store apps (needs to be 768 minimum)

- At 1080p much of the UI is too small. You can increase the font size but that’s not always enough.

- Surprisingly, while keyboard navigation is great, it doesn't seem to support the Xbox 360 controller at all for navigating through the UI.
Shaman, Sacrificed Pigs, and Other Startup Stories Living Amongst a Hilltribe
I've used both, it's similar but a main difference is that you kick ansible off from another (say your dev machine) which then ssh's in and does it's stuff, whilst knife-solo starts from the host.
~$1000 a month. Designed, edited and published a book of Warren Buffett's letters to shareholders (see http://amzn.com/1595910778). An opportunity I stumbled into. But I suppose "get publication rights from Warren Buffett" isn't a repeatable business model :)
Most likely ubuntu as that seems to be their defacto test platform. If you download steam from their site it comes packaged in a .deb format. They have pretty significant investments in that stack, and even list it as their favorite flavor:

"Not running Linux yet? Ubuntu is our favorite version of Linux."

(at the bottom of this page: http://store.steampowered.com/about/)
Indeed, the funky math does hide a true story. Yes, there are insane tax breaks to farmers and businesses and wealthy. Placing the entire blame of drug overcharges on our patent system is a stretch, and hurts the spots where he has legit points.
Valve are working on improving Linux debugging tools too, which is great for developers.
My traffic is pretty much direct/word of mouth. I haven't done any advertising, just a few links on places like HN.
The problem with a YouTube video site like tubalr is you can't use adsense unless you have a lot of added content and you are competing with the ads in the videos anyways. And in my experience other ad networks have really bad CPM rates.
So you probably have to find another way to monetize the site, which is tricky. The sad fact is that music/video sites while fun to build are a hard way to make money (having built a few myself).
The new general solicitation rules permit a company to solicit investment publicly if certain requirements are met. One of those requirements is that the company file a Form D with the SEC 15 days before its offering is advertised, so I don't see how it's possible for a company to be soliciting publicly today.

IANAL but I would be incredibly uncomfortable as a founder if one of my investors was taking the new rules to mean that he could solicit investment publicly on my company's behalf.
Likely, but of course just a speculation at this point.
Which is exactly what it'll be. I really hope to keep the userland portable - so Kirk/FreeBSD or Kirk/Darwin could happen in the distant future
What coinbase has implemented is not off-the block-chain microtransactions. Basically, they are just moving money between two coinbase accounts. So looks like only Coinbase users can use your service, if others use it they will end up flooding the block-chain.
When people "install" the app from the Chrome web store it just puts a link in their browser. That's it.

In the Google marketplace it's a bit more advanced, and you can integrate with Google authentication for sign in, and with documents for document sharing and so on.