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Python-LMDB In a High-Performance Environment

Wdomburg Re:Submitter doesn't understand Wikipedia notabili (98 comments)

Don't know, don't care. The case against notability was stronger when it was first submitted, likely, but it is certainly hard to defend now. There are mature bindings for most languages, it underpins a number of higher level data stores (including OpenLDAP, of course, but also FineDB, Hustle), and is a supported back-end for a large number of projects (sometimes as a default component, as with CFengine and Zimbra).

5 days ago
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Python-LMDB In a High-Performance Environment

Wdomburg Re:Wikipedia article deleted (98 comments)

If the rules legitimately preclude a page on LMDB, they certainly should preclude individual pages for MySQL backends like Falcon, Aria, and Toku, shouldn't it? And yet there they are.

5 days ago
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The CDC Is Carefully Controlling How Scared You Are About Ebola

Wdomburg Re:Ebola threat (478 comments)

No, that's exactly what I read into the suits. Dealing with a deadly, incurable disease demands an excess of caution, even if the transmission rate is dramatically lower than other diseases. You don't need each patient to infect a hundred other people for it to spread; so long as it is more than one, it is a growing problem.

The risk here isn't because the disease is especially contagious; it is because the containment and treatment is especially costly. Doctor diagnoses someone with the flu, they send them home and tell them to drink plenty of wayer and get plenty of rest. In an extreme case, they may push IV fluids and keep a few days for observation.

With Ebola that becomes weeks of quarantine and treatment, stringent sterilization procedures, and monitoring anyone they've come in contact with. It wouldn't take an especially large outbreak to strain and ultimately exhaust available resources. And as necessity forces compromises in care and treatment by untrained individuals, transmission rates will spike.

about two weeks ago
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The CDC Is Carefully Controlling How Scared You Are About Ebola

Wdomburg Re:Ebola threat (478 comments)

Really not a viable treatment course. Even with monitoring and proactive care, your chances of survival are about even. In isolation, pretty much a death sentence.

about two weeks ago
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The CDC Is Carefully Controlling How Scared You Are About Ebola

Wdomburg Re:Ebola threat (478 comments)

Coughing and sneezing may be symptoms of specific diseases, but they are also reflexes that are not necessarily linked to a specific disease. People may cough because they aspirated saliva, or because they just came in from smoking. People may sneeze because its ragweed season, of because of the judiciously applied perfume of the person next to them (or the guy who just came in from smoking), or even as a reaction to a brightly lit waiting room.

Possibly a bigger risk than the waiting room itself would be the bathrooms. The likelihood of contamination when there is evacuation of infectious material, as well as repeated bare skin contact with the same surface by a stream of individuals strikes me as very high, especially if some patients wait long enough that they have developed rashes.

In iso+lation, this is a solvable problem, but if a critical mass of patients develops, it can quickly get out of hand. Especially now, as we are enter flu season.

about two weeks ago
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The CDC Is Carefully Controlling How Scared You Are About Ebola

Wdomburg Re:Ebola threat (478 comments)

Separation is not enough when the virus can survive outside the body for extended periods. All it takes is for one infected individual to rest their sweaty hands on an armrest and that seat becomes a possible vector. There is a reason people are wearing those suits, and it is not because they look cool.

Sending people with sick kids is not a particularly viable long term solution. Even if it reduces the immediate risk to the general population, it puts the rest of their family at grave risk and is a likely death sentence for the child. Homes are simply not equipped to deliver the necessary palliative care needed by patients, nor are most people trained in the necessary sanitation procedures to prevent transmission.

about two weeks ago
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The CDC Is Carefully Controlling How Scared You Are About Ebola

Wdomburg Re:Ebola threat (478 comments)

People with fevers sweat, they cough, they sneeze. Droplet transmission is a serious threat, especially in cramped conditions. No licking necessary. But then you throw children in the mix, and there will be licking and mouthing of potentially contaminated items. And sick kids that want to be held by mommy or daddy, and will sneeze directly in their face.

Not saying that we have reason to panic now, but it is fatuous to dismiss the very real challenges of effective containment once the disease becomes endemic to a particular population.

about two weeks ago
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Goodbye, World? 5 Languages That Might Not Be Long For This World

Wdomburg Re:Thinking back to my undergraduate days (late 70 (547 comments)

Java is going nowhere. In addition to being in most phones (Android, Jave ME), it is in every Blu-Ray player (BD-J), every cable box (OCAP), cash registers, ATMs and voting machines. And that isn't even touching on enterprise, web and desktop applications.

Take a look at most language rankings and Java remains near or at the top, whether you look at Tiobe, PyPL, RedMonk, IEEE Spectrum, or the various job surveys published by the likes of Dice.com and eWeek.

about two weeks ago
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Goodbye, World? 5 Languages That Might Not Be Long For This World

Wdomburg Re:Ruby? (547 comments)

JRuby and Rubinius have been using JIT for years.

about two weeks ago
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If Java Wasn't Cool 10 Years Ago, What About Now?

Wdomburg Re:What's the point? (511 comments)

Java has a vast ecosystem, excellent threading and concurrency support, robust monitoring and debugging tools, and can rival (or exceed) the performance of traditional compiled languages.

This is true for both small scale and large scale problems. For example, I wrote a little tool to do LDIF transforms in perl. Six hours later, it wasn't even half finished. Rewrote it using a Java library (UnboundSDK) and it finished in about twenty-five minutes.

On the other end of spectrum, I wrote a load-testing application that scaled cleanly to tens of thousands of threads. In a couple of hours. With no experience writing anything to that scale before.

(And the idea that Java is strictly Android these days is absurd. Your cable box runs Java. So does your blu-ray player. Along with ATMs, cash registers, voting machines, any number of enterprise applications, webservices, etc, etc. It is an incredibly pervasive language.)

about 2 months ago
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If Java Wasn't Cool 10 Years Ago, What About Now?

Wdomburg Re:What's the point? (511 comments)

It also turns out you can implement everything in plain Java libraries. In fact it is a heck of a lot easier, since you don't need to wrap the C modules; everything Just Works.

about 2 months ago
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Facebook Experimenting With Blu-ray As a Storage Medium

Wdomburg Re:what does that cost? Compare 64TB per $300 (193 comments)

How big a stack do you need to match a 1320 tape library? Even using 4TB disks you're talking 825 disks, which means 51 enclosures. And then four racks to hold those enclosures. And enough floor space to hold those racks. And enough circuits to power those racks.

At that level of scale, tape is simply a better option for archival storage.

about 2 months ago
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Lots Of People Really Want Slideout-Keyboard Phones: Where Are They?

Wdomburg Re:In the USA people don't pay for phones (544 comments)

Eh? Both T-Mobile and AT&T (and Verizon, actually) offer no-contract service. Not one or two year. No year. Now you might finance a phone through them, and be on the hook for paying that, but that is not the same thing as being under a service contract.

about 3 months ago
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Linus Torvalds: "GCC 4.9.0 Seems To Be Terminally Broken"

Wdomburg Re:Or upgrade to llvm ... (739 comments)

Erm, LLVM was around for half a decade before Apple started contributing to it.

about 3 months ago
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Enraged Verizon FiOS Customer Seemingly Demonstrates Netflix Throttling

Wdomburg Re:Could be a different route involved for the VPN (398 comments)

I would think the more apt analogy is that you sold me unlimited access to your fridge (bandwidth) but Netflix (content provider) is only restocking at a rate of one six-pack per week. IOW, Netflix is the one failing to have peerage agreements in place to honor their downstream sales commitments.

about 3 months ago
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Chromebooks Are Outselling iPads In Schools

Wdomburg Re:Good (225 comments)

Very expensive items ... like an iPad. Even if, as you stipulate, the replacement rate is significantly higher, it can afford to be. Because again, half the cost. Less once you consider the cost of keyboard and case for the iPad.

But I frankly doubt the iPad will last that much more. The batter is probably higher grade in the Apple, but the battery in many Chrome books is user-replacement and long off-AC battery life is not going to be a pre-requisite for this use case. There may be a slightly higher breakage rate with a Chromebook (given hinges, keyboard, etc), but accidental damage is likely to be similar on both and repairs on the Apple side are going to be more expensive (since they are not easily user-serviceable). Loss and theft will be more expensive on the Apple side as well, since the unit cost is higher. And separate keyboards are probably more likely to be lost or damaged than a built-in one.

about 3 months ago
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Chromebooks Are Outselling iPads In Schools

Wdomburg Re:Good (225 comments)

Less than half the price. When buying tens or hundreds of thousands of units, the savings add up.

And applications targeting the platform have the expectation of a keyboard and pointing device, unlike iOS apps.

There are limitations, but that does not mean it is unsuitable to all markets. And those limitations become less important as applications increasingly move to the web.

about 3 months ago
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Nearly 25 Years Ago, IBM Helped Save Macintosh

Wdomburg Re:Intel (236 comments)

It was the G4 and a considerable level of creativity in Apple's marketing department. They were not considered a "supercomputer". They were briefly subject to an export ban to some markets because they breached a arbitrary limit that had already changed by the time they hit the market.

See, for example:

The extend of their superiority over the Intel and AMD processors of the time also need to be taken with a grain of salt. As with most Apple touted benchmarks, the fine print would reveal that the "up to twice as fast" claim referred to three specific Photoshop filters that were optimized for the Altivec operations in the G4. In other words, they exploited the fact that Intel made significant performance trade-offs with their implementation of SIMD instructions in that generation. In other benchmarks (like SPEC) the P3 spanked the G4.

about 3 months ago

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