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4141

EC2 Dedicated Hosts

Last month, I announced that we would soon be making EC2 Dedicated Hosts available. As I wrote at the time, this model allows you to control the mapping of EC2 instances to the underlying physical servers. Dedicated Hosts allow you to: Bring Your Own Licenses – You can bring your existing server-based licenses for…

4142

To ECC or Not to ECC

On one of my visits to the Computer History Museum – and by the way this is an absolute must-visit place if you are ever in the San Francisco bay area – I saw an early Google server rack circa 1999 in the exhibits. Not too fancy, right? Maybe even… a

4145

How transistors really work (1995)

Most technician textbooks do a very poor job of explaining the details of transistors' internal workings. First they assume that the Base current is somehow controlling the Collector current, then they try to explain how one current can affect another. These explanations invariably fail because Bipolar transistors…

4155

What is Electricity?

Electricity is all around us--powering technology like our cell phones, computers, lights, soldering irons, and air conditioners. It's tough to escape it in our modern world. Even when you try to escape electricity, it's still at work throughout nature, from the lightning in a thunderstorm to the synapses inside our…

4158

ARM server market

Microservers and the motivations for microservers have been around for years. I first blogged about them back in 2008 ( Cooperative, Expendable, Microslice, Servers: Low-Cost, Low-Power Servers for Internet-Scale Services ) and even Intel has entered the market with Atom but it’s the ARM instruction set architecture…

4160

Why Intel Added Cache Partitioning

Typical server utilization is between 10% and 50%. Google has demonstrated 90% utilization without impacting latency SLAs . Xkcd estimated that Google owns 2 million machines . If you estimate an amortized total cost of $4k per machine per year , that's $8 billion per year. With numbers like that, even small…