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Data Storage

ZFS Hits an Important Milestone, Version 0.6.1 Released 99

sfcrazy writes "ZFS on Linux has reached what Brian Behlendorf calls an important milestone with the official 0.6.1 release. Version 0.6.1 not only brings the usual bug fixes but also introduces a new property called 'snapdev.' Brian explains, 'The snapdev property was introduced to control the visibility of zvol snapshot devices and may be set to either visible or hidden. When set to hidden, which is the default, zvol snapshot devices will not be created under /dev/. To gain access to these devices the property must be set to visible. This behavior is analogous to the existing snapdir property.'"

Comment Chinese Visitors May Carry Spy Gear to the West (Score 1) 334

My son's physics class was visited by 3 Chinese teachers. As they walked into the classroom, his Macbook Air crashed. He tells me he was in gmail at the time. His laptop has never had a kernel crash before or since. Does this story prove anything? No. But it is conceivable that visiting teachers carry laptops that probe and spoof software such as gmail that the government has a keen interest in cracking. The teachers may be completely unaware of why their laptops seem to discharge batteries in a few hours even when the lids are closed.

Comment "Immense Promise" requires Efficiency (Score 5, Insightful) 289

Thirty years ago I was in the Propulsion & Thermodynamics group at Lockheed. One of the guys had a research project on spanwise rotor propulsion - his proof of concept used a beefed up cylindrical hair dryer rotor of the day. Yeah, you can get some net thrust, but at nowhere near the efficiency of conventional designs. There has to be a really strong reason to sacrifice all the extra fuel and weight and safety deficits when compared to better techniques. Perhaps there are niches where the tradeoffs are worth it, but that is not what I'd call "immense promise". Let's see what kind of thrust-to-weight, lift-to-drag, and thrust-specific-fuel-consumption their aircraft can produce first...

Comment Showing HFT Algos Can Use Collusion to Profit (Score 1) 159

I've previously argued that High Frequency Trading algorithms can use collusion to reap systematic profits. If the self-learning algos 'learn' and 'express' intentions through patterns of queries, it is possible for them to do this without there being any prosecutable intent by a human. The programmers could claim that they never wrote a line of code that did any collusion. If it is possible in theory for algos to develop trading collusion, then it is just a matter of time until they do. Since they evolve and learn very quickly, they probably already have.

Honeycomb To Require Dual-Core Processor 177

adeelarshad82 writes "According to managing director of Korean consumer electronics firm Enspert, Google's new Android Honeycomb tablet OS will require a dual-core ARM Cortex-A9 processor to run properly. That means that many existing Android tablets will not be upgradeable to Honeycomb, as they lack the processor necessary to meet the spec. Currently, Nvidia's Tegra 2 platform is the only chipset in products on the market to include a Cortex-A9, although other manufacturers have said they're moving to the new processor architecture for 2011 products."

Comment Re:Redeeculous (Score 1) 121

ebay has Dr. Clark's copy from $250. Amazon is $200 - $600. The online availability of a $72 microfilm version from UMI has been terminated. Only 2,000 copies were printed, and the Atlanta library system has zero. If anyone has any ideas how I can get one, please email me directly at My dad is still lucid at 91, and would enjoy this for Christmas! During WWII he developed shaped charges for the Army with George Kistiakowsy in Pittsburgh, before Kistiakowsky got "drafted" by the Manhattan Project. Werner Von Braun used to live 2 doors down when I was a toddler, and his niece was a baby sitter for our family.
PlayStation (Games)

Long-Delayed L.A. Noire Gets Trailer, Spring 2011 Release 54

It's been years since the announcement of L.A. Noire, an expansive murder mystery game set in 1940s Los Angeles. After several lengthy delays, Rockstar Games has now posted a trailer and confirmed that the game will release in Spring of 2011. One of the game's major undertakings is to step up the realism of the voice acting and the way characters' faces and bodies are animated, "allowing players to analyze every subtle nuance of an actor's performance in order to get to the truth." The trailer shows in-game footage (though not actual gameplay), and while it's always a good idea to take such displays with a grain of salt, the facial expressions do look pretty realistic.

Feeling Upset? Look At Some Meat 155

Meshach writes "A study out of Canada claims that seeing meat actually calms a person down. From the article: 'Contrary to expectations, a McGill University researcher has discovered that seeing meat makes people significantly less aggressive. Frank Kachanoff, who studies evolution at the university’s department of psychology, had initially thought the presence of meat would provoke bloodlust, believing the response would have helped our primate ancestors hunt. But in fact, his research showed the reverse is true.'" I can see all the "Make Steak, Not War!" protest signs already.

The Home-Built Dark Knight Batmobile 87

ElectricSteve writes "RM Auctions recently declared James Bond's Aston Martin DB5 to be 'the world's most famous car,' but there's no doubt that there is another contender for that title — the Batmobile. One thing that muddies the waters a bit is the fact that the term 'Batmobile' actually describes at least three different vehicles: the modified Lincoln Futura concept car from the '60s TV series, the vaguely Corvette-shaped 1989-and-beyond movie cars, and now the car from the most recent two movies, the military-spec Tumbler. Michigan-based movie props artist Bob Dullam really likes the Tumbler, so he did what any of us would do in his position — he built one of his own from scratch."

Why Overheard Cell Phone Chats Are Annoying 344

__roo writes "American researchers think they have found the answer to the question of why overhearing cell phone chats are annoying. According to scientists at Cornell University, when only half of the conversation is overheard, it drains more attention and concentration than when overhearing two people talking. According to one researcher, 'We have less control to move away our attention from half a conversation (or halfalogue) than when listening to a dialogue. Since halfalogues really are more distracting and you can't tune them out, this could explain why people are irritated.' Their study will be published in the journal Psychological Science."

Visually Demonstrating Chrome's Rendering Speed 140

eldavojohn writes "Recent betas of Google's Chrome browser are getting seriously fast. Couple that with better hardware, on average, and it's getting down to speeds that are difficult to demonstrate in a way users can appreciate. Which is why Google felt that some Rube Goldberg-ish demonstrations with slo-mo are in order. Gone are the days of boring millisecond response time metrics."
United States

State Senator Caught Looking At Porn On Senate Floor 574

Everyone knows how boring a debate on a controversial abortion bill can get on the Senate floor. So it's no wonder that Florida State Sen. Mike Bennett took the time to look at a little porn and a video of a dog running out of the water and shaking itself off. From the article: "Ironically, as Bennett is viewing the material, you can hear a Senator Dan Gelber's voice in the background debating a controversial abortion bill. 'I'm against this bill,' said Gelber, 'because it disrespects too many women in the state of Florida.' Bennett defended his actions, telling Sunshine State News it was an email sent to him by a woman 'who happens to be a former court administrator.'"

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