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PHP

PHP Gets Namespace Separators, With a Twist 523

jeevesbond writes "PHP is finally getting support for namespaces. However, after a couple hours of conversation, the developers picked '\' as the separator, instead of the more popular '::'. Fredrik Holmström points out some problems with this approach. The criteria for selection were ease of typing and parsing, how hard it was to make a typo, IDE compatibility, and the number of characters."
Data Storage

Why RAID 5 Stops Working In 2009 803

Lally Singh recommends a ZDNet piece predicting the imminent demise of RAID 5, noting that increasing storage and non-decreasing probability of disk failure will collide in a year or so. This reader adds, "Apparently, RAID 6 isn't far behind. I'll keep the ZFS plug short. Go ZFS. There, that was it." "Disk drive capacities double every 18-24 months. We have 1 TB drives now, and in 2009 we'll have 2 TB drives. With a 7-drive RAID 5 disk failure, you'll have 6 remaining 2 TB drives. As the RAID controller is busily reading through those 6 disks to reconstruct the data from the failed drive, it is almost certain it will see an [unrecoverable read error]. So the read fails ... The message 'we can't read this RAID volume' travels up the chain of command until an error message is presented on the screen. 12 TB of your carefully protected — you thought! — data is gone. Oh, you didn't back it up to tape? Bummer!"
Portables (Apple)

Top Apple Rumors, Bricks, Low Price, NVIDIA 283

Vigile writes "With the news that Apple will be releasing new MacBook products on October 14th, speculation has begun on what exactly those new products will be. Tips of a manufacturing process involving lasers and a single 'brick' of aluminum are catching on, as is the idea of a sub-$1000 netbook-type device. More interesting might be the persistent rumors of an NVIDIA chipset adoption that would drastically increase gaming ability, allow MacBooks to improve their support for OpenCL and take advantage of the new Adobe CS4 software with GPU acceleration. Will NVIDIA's ailing chipset business get a shot in the arm next week?"
The Military

How Tech Almost Lost the War 679

An anonymous reader writes "Blame the geeks for the mess in Iraq? Wired says so. Networked troops were supposed to be so efficient, it'd take just a few of 'em to wipe out their enemies. But the Pentagon got their network theory all wrong, with too few nodes and a closed architecture. Besides, a more efficient killing machine is the last thing you want in an insurgency like Iraq."

Comment Re:Don't forget...! (Score 1) 444

That's not a very good example, considering that 0.00000000000001*(2^n) > 100000000000000000*n when n >= 110. On 128 bit input, the exponential runtime is more than 265,000 times as slow as the linear.

Complexity classes are more than just "nice."

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