Gmail was down from about 12:30 p.m. PDT Tuesday to about 2:30 p.m. PDT, affecting millions of Gmail customers who depend on the service for everything from fantasy football roster updates to business-critical information. The problem was caused by a classic cascade in which servers became overwhelmed with traffic in rapid succession.
According to Google, the problem began when it took several Gmail servers offline for maintenance, a routine procedure that normally is transparent to users. However, the twist this time around was that Google had made some changes to the routers that direct Gmail traffic to servers in hopes of improving reliability, and those changes backfired.
Google fixed the problem by allocating traffic across the rest of its prodigious network, a luxury that it enjoys given the resources it has put in place to operate the world's leading search engine. But what's next?
Google said it would focus on making sure that the request routers have sufficient headroom to handle future spikes in demand, as well as figuring out a way to make sure that problems in one sector can be isolated without bringing down the entire service. "We'll be hard at work over the next few weeks implementing these and other Gmail reliability improvements -- remains more than 99.9% available to all users, and we're committed to keeping events like today's notable for their rarity," Treynor wrote.








AMD Athlon Neo silicon details(Credit: AMD)
The dv2 will also come with WWAN (Wireless Wide Area Network) options as well as standard Bluetooth and Wi-Fi.
Bahr Mahony, AMD's manager of mobile products, said in an interview that one of the few ultraportables available today with discrete graphics is the MacBook Air, but this starts at a whopping $1,800. (The Air uses Nvidia's GeForce 9400M graphics and Intel's Core 2 Duo low-voltage processors.)
The Athlon Neo platform can handle 1080p HD playback and a "casual" gaming experience with realistic 3D graphics, using the optional ATI Mobility Radeon HD 3410 graphics chip.
AMD's Athlon Neo processor--formerly code-named "Huron" under the platform codename "Yukon"--runs at 1.6GHz and has a power envelope of 15 watts, comparable to Intel ULV (Ultra Low Voltage) Core 2 Duo processors that power ultraportables today.
AMD's Neo does fall short in one respect, however. Currently it is only single-core, whereas Intel ULV processors are dual-core at a comparable power envelope, and, moreover, typically integrate 6MB level-2 cache memory to boost performance. AMD's Neo has only 512K of cache memory.
A dual-core chip, code-named "Conesus," will come in the second half of this year, according to AMD's Mahoney.
The first HP Pavilion dv2 ultrathin notebook is expected to be available from HP in the second quarter. 

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