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The Blog Of David Marks

How does Google debug problems in a large, distributed infrastructure?

It’s incredibly difficult to debug errors and performance bottlenecks in a large, distributed computing system. Many different components and computing nodes touch each transaction, and it’s extremely time consuming to determine what, exactly, is going on inside the system. Answering basic questions like “What kind of requests do we handle poorly?” and “Which component of […]

Just in case you wondered where Apple’s revenue comes from

Today, Silicon Alley Insider released their excellent chart of the day for Apple’s latest revenue figures. Note that Apple receives most of their revenue selling devices like the iPhone, not software. But they spend a heck of a lot of software and content (iTunes) in order to stimulate demand and differentiation for their hardware products. […]

"I feel for Google – Steve Jobs threatened to sue me, too."

Link: “I feel for Google – Steve Jobs threatened to sue me, too.” Jonathan Schwartz details the games people play in technology IP lawsuits as it relates to the recent Apple suit over Android. A great read on the topic with some real inside perspective. I had not read Jonathan’s blog since he left Sun […]

Just posted a quick note on Apple’s local advertising move to the Spinnaker blog

http://spinnaker.tumblr.com/post/372643025/is-apple-launching-a-local-advertising-network-for