'How to properly compare between different nodes in a given system?

I have data about some nodes of a specific system.

Example of the data.

Node type Start time Elapsed time
Node 1 15:00:00 0.0017
Node 2 15:01:21 0.0256215
Node 3 15:02:00 0.01453
Node 4 15:08:084 0.015633
Node 5 15:04:00 0.0000258843

Could you please give me ideas for how to best measure the nodes' performance? Simply, if given another data for the same nodes running on a different system/branch/algorithm .. how to compare them?

It came to my mind, (total_elapsed_time / number_of_occurence) as a ratio per each node.

Any ideas for other KPIs would be great. Thank you



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