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Re: Amazon EC2 CPU Utilization

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Jim Mlodgenski <jimmy76 <at> gmail.com> writes:
> I have seen behavior like this in the past on EC2. I believe your bottleneck
may be pulling the data out of cache. I benchmarked this a while back and found
that memory speeds are not much faster than disk speeds on EC2. I am not sure if
that is true of Xen in general or if its just limited to the cloud.  

When the CPU is waiting for a memory read, are the CPU cycles not charged to the
currently running process?


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