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The graph dataset is too small in size. It makes little sense for real-world usage.

Ingo from ArangoDB: Despite it's the whole dataset of a real-world use case. :)

But of course, you need to test and decide on basis of your individual requirements and use cases.

Ingo - SNAP has a bunch of other "real-world use case" graphs available for free, many of which larger than this 1M-node, 30M-edge toy.

I've done a bunch of related benchmarkings, and the smallest real-world dataset I've used is the largest one on SNAP: orkut.