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If nbench only uses 1 core, yes, my comparison is wrong. Is there a similar benchmarking linux tool that can use many cores?

edit: instance is a t2.micro

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I don't think the comparison is wrong per se; this actually makes it a bit easier, since you're just comparing one core to another.

The only thing that I think is problematic is comparing a t2 to anything else, since that CPU performance is not sustainable as it might be elsewhere. m3 and m4 (and other instance types @ aws) are not explicitly throttled. (Source: AWS Solutions Architect)

We're running a portion of our workload at Userify[1] on AWS, but not the biggest portion, but this is actually for bandwidth cost reasons, not CPU (even though our workload is almost entirely CPU and bandwidth -- almost zero disk; our infrastructure at AWS would cost 8x more!)

1. https://userify.com (SSH key management)

I assumed nbench uses all the available cores, that's why I said I'm wrong. On a 1 core basis, yes, it's useful, and I get that this t2 instance is not a stable baseline. I only have that available right now, as my free credit.

> Is there a similar benchmarking linux tool that can use many cores?

There is kcbench:

http://linux.die.net/man/1/kcbench

It compiles a kernel.

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