Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Comment My own very recent experience (2 weeks ago) (Score 4, Informative) 288

I moved a small 4TB database from 24x 256G 15k SAS drives to 24x 240G OCZ Vertex 3 SATA3 drives. I ran a few queries on the old and the new. same data, same parameters, same amount of data pulled. Both were hooked up via PCIe 8x slots.

the SSD crushed the SAS. Not just a mere 2x or 3x crushing. A _FIFTEEN TIMES FASTER_ crushing. This was pulling about a million rows out. 12 seconds (SSD) vs 189 seconds (spindles)

Cost difference? under $50 per drive more expensive for SSD. I think our actual rate was around $10 per drive more. However, the system as a whole (array+drives+computer) was $12k less. No contest... for our particular application, SSD hands down makes it actually work.

we'll be moving the larger database (same data, same function) to SSD as soon as we can.

Comment I live in such a community (Score 1) 1173

In the last decade, the area (actually 3 towns) put in roundabouts all over. One of them put them in in quite a few places.

I personally don't have a problem with them. They make sense to me. However, there are a lot of people who don't understand the rules of them. They think they can go whenever they like.

I find this particularly bad on two lane roundabouts, of which there are two within a couple miles of my house. One of these I go through every day. It seems that folks have not realized that both lanes of the roundabout have right of way. I have nearly been t-boned in the roundabout because of this.

Driving, yet one more thing that we need to have a "you must be this smart to do it" metric.

Facebook

Top Facebook Apps Violate Privacy Terms 95

cgriffin21 writes "No stranger to privacy concerns, Facebook is once again in the privacy spotlight, following a Wall Street Journal report that some popular Facebook applications leak personal information to advertisers. 'Many of the popular applications, or 'apps,' on the social-networking site Facebook Inc. have been transmitting identifying information — in effect, providing access to people's names and, in some cases, their friends' names — to dozens of advertising and Internet tracking companies,' according to The Wall Street Journal, which wrote about Facebook Sunday in the latest installment of its recent 'What They Know' series about advertising and the Internet."
Transportation

When the US Government Built Ultra-Safe Cars 520

Jalopnik has a piece on a mostly forgotten piece of automotive history: the US government built a fleet of ultra-safe cars in the 1970s. The "RSV" cars were designed to keep four passengers safe in a front or side collision at 50 mph (80 kph) — without seat belts — and they got 32 miles to the gallon. They had front and side airbags, anti-lock brakes, and gull-wing doors. Lorne Greene was hired to flack for the program. All this was quickly dismantled in the Reagan years, and in 1990 the mothballed cars were all destroyed, though two prototypes survived in private hands. "Then-NHTSA chief Jerry Curry [in 1990] contended the vehicles were obsolete, and that anyone who could have learned something from them had done so by then. Claybrook, the NHTSA chief who'd overseen the RSV cars through 1980, told Congress the destruction compared to the Nazis burning books. ... 'I thought they were intentionally destroying the evidence that you could do much better,' said [the manager of one of the vehicles' manufacturers]."
First Person Shooters (Games)

Duke Nukem Forever Not Dead? (Yes, This Again) 195

kaychoro writes "There may be hope for Duke Nukem Forever (again). 'Jon St. John, better known as the voice of Duke Nukem, said some interesting words during a panel discussion at the Music and Games Festival (MAGFest) that took place January 1 – 4 in Alexandria, Virginia, according to Pixel Enemy. Answering a question from the crowd regarding DNF, St. John said: "... let me go ahead and tell you right now that I'm not allowed to talk about Duke Nukem Forever. No, no, don't be disappointed, read between the lines — why am I not allowed to talk about it?"'"
Biotech

Attractive Women Make Men Temporarily Stupid 652

Ponca City, We love you writes "The Telegraph reports that men who spend even a few minutes in the company of an attractive woman perform less well in tests designed to measure brain function than those who chat to someone they do not find attractive. This leads to speculation that men use up so much of their brain function or 'cognitive resources' trying to impress beautiful women, they have little left for other tasks. Psychologists at Radboud University in The Netherlands carried out the study after one of them was so struck on impressing an attractive woman he had never met before, that he could not remember his address when she asked him where he lived. Researchers recruited 40 male heterosexual students and had each one perform a standard memory test. The volunteers then spent seven minutes chatting to male or female members of the research team before repeating the test. The results showed that men were slower and less accurate after trying to impress the women. The more they fancied them, the worse their score."
Medicine

Depression May Provide Cognitive Advantages 512

Hugh Pickens writes "Paul W. Andrews and J. Anderson Thomson, Jr. argue in Scientific American that although depression is considered a mental disorder, depression may in fact be a mental adaptation which provides real benefits. This is not to say that depression is not a problem. Depressed people often have trouble performing everyday activities, they can't concentrate on their work, they tend to socially isolate themselves, they are lethargic, and they often lose the ability to take pleasure from such activities such as eating and sex. So what could be so useful about depression? 'Depressed people often think intensely about their problems,' write the authors. 'These thoughts are called ruminations; they are persistent and depressed people have difficulty thinking about anything else. Numerous studies have also shown that this thinking style is often highly analytical. They dwell on a complex problem, breaking it down into smaller components, which are considered one at a time.' Various studies have found that people in depressed mood states are better at solving social dilemmas and there is evidence that people who get more depressed while they are working on complex problems in an intelligence test tend to score higher on the test (PDF). 'When one considers all the evidence, depression seems less like a disorder where the brain is operating in a haphazard way, or malfunctioning. Instead, depression seems more like the vertebrate eye — an intricate, highly organized piece of machinery that performs a specific function.'"

Comment why isn't this the default during user setup? (Score 5, Insightful) 500

I've often wondered why when you are setting up your user account on a box, and it gets to the part with setting up email, it didn't give you a chance to generate or import public/private keys right there and them upload the public to a server. Particularly on linux boxes, this seems like a completely feasible option.

One might also envision having a secret key storage mechanism, either by local external media or via remote storage where it could go look.

Businesses

OnLive and Gaikai — How To Stop a Gaming Revolution 125

happierr writes "The gaming industry has been struggling in the last few months, and it is about to struggle even more when OnLive and Gaikai launch later this year. The new services are both a step in the right direction to counter piracy and provide easily-accessible gaming to people with low-end PCs. They might even do for PC gaming what the Wii did for casual gaming; greatly expand the market and draw interest from people who would not ordinarily play games. The services are a real threat for the Big Three video game companies (Microsoft, Sony, and Nintendo). How will they combat these revolutionary services? There are a few steps that the Big Three are taking to combat the New Two, such as an increased reliance on peripherals and vision cameras, exclusivity deals, and more online multiplayer features, which OnLive and Gaikai will have a hard time matching."

Slashdot Top Deals

Beware of Programmers who carry screwdrivers. -- Leonard Brandwein

Working...