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> Others I've spoken to will only commit to saying "core", without specifying what the reference hardware is.

There's probably no reference hardware beyond `cat /proc/cpuinfo`.

Even that is not accurate... on an OpenVZ instance set for 2 cores, this command gives me the specs on the CPU, an E5405, twice. Of course, this chip actually has 4 cores, so to show only 2 is not really accurate.

On a nearly-identical XenServer instance, it shows the same info, showing 2 CPUs but identifying the CPU as a 6-core Opteron.

From this, however, you cannot infer what percentage of those 2 virtual CPUs that you are going to get.

/proc/cpuinfo for me shows 4 Intel Xeon L5520 @ 2.27GHz

My Linode also shows 4 L5520, but that's probably 2 cores with 4 threads as the L5520 [1] has 4 cores and 8 threads in total.

http://ark.intel.com/products/40201/Intel-Xeon-Processor-L55...

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