According to a ZDNet article (by John Hazard, March 9, 2011) “IT manager jobs to staff jobs in move to the Cloud“:
The typical IT organization usually maintains manager-to-staff ratio of about 11 percent (that number dips to 6 or 7 percent in larger companies), said John Longwell, vice president of research for Computer Economics. The ratio has been volatile for four years, according to the Computer Economics recently released study, IT management and administration staffing ratios. As businesses adjusted to the recession, they first eliminated staff positions, raising the ratio to its peak of 12 percent in 2009. In 2010, businesses trimmed management roles as well, lowering the ratio to 11 percent, Longwell said. But the long term trend is toward a higher ratio of managers-to-staff ratio, he told me.
“Over the longer term, though, I think we will see a continued evolution of the IT organizations toward having more chiefs and fewer Indians as functions move into the cloud or become more automated.”
For a complete copy of the article see: http://www.zdnet.com/blog/btl/it-manager-jobs-to-staff-jobs-in-move-to-the-cloud/45808?tag=content;search-results-rivers
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Posted in cloud computing, content management system, response time, servers, throughput, Xen, tagged Amazon, cloud, cms, drupal, ec2, reponse time, servers, throughput, virtualization on January 11, 2009|
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According to a benchmark test run by John Quinn & Cailin Nelson,
Drupal systems perform very well on amazon ec2, even with a simple single machine deployment. The larger hardware types perform significantly better, producing up to 12,500 pages per minute. this could be increased significantly by clustering as outlined here. The apc op-code cache increases performance by a factor of roughly 4x. The average response times were good in all the tests. The slowest tests yielded average times of 1.5s. again, response times where significantly better on the better hardware and reduced further by the use of apc.
Amazon uses Xen based virtualization technology to implement ec2. The cloud makes provisioning a machine as easy as executing a simple script command. when you are through with the machine, you simply terminate it and pay only for the hours that you’ve used. ec2 provides three types of virtual hardware that you can instantiate.
Source: John & Cailin Blog, “lamp performance on the elastic compute cloud: benchmarking drupal on amazon ec2”, January 28, 2008.
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