Cloud Encounters Measuring the Computing Cloud What clouds? Where is the cloud? How good is it? Who am i? Need more servers? It is pretty good! new zealand is really far away from Europe Measured using world-wide monitoring stations by WatchMouse Period: March/April 2009 >7000 probes each But how good is it exactly? Google's coverage has increased Google missed real location of Denmark Cloud has European presence Cloud has Asian presence Yeah. Right! Speed of light .. Connect time to a single hosted site increases with distance Connect time to the Google App Engine does not increase with distance Or try this! Fast deployment of virtual servers Amazon EC2 Hosted Applications Google Sites Google Applications Gmail Salesforce.com (Static) Content Distribution Network Distributed, Scalable processing Google App Engine Windows Azure? Akamai Amazon Cloudfront Mosso Akamai is pretty much everywhere Our Cloud Proximity Indicator is an aggregate measure, and is computing by averaging the distances to 35 Watchmouse monitoring stations, where distance is minimum of observed pingdelays or connect delays. Google data centers worldwide Source: techcrunch sub millisecond delay Google App Engine Site hosted in Amsterdam
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