Sample — test — data for large WordPress install

I’m working on a plugin, Index WP MySQL for Speed. For testing it would be helpful to have a very large WordPress installation containing many thousands of posts, pages, metadata entries, media items, users, options, and so forth. The meaning of the data doesn’t matter — it can be lorem ipsum text — but having a lot of it would be great. For my purposes I don’t care whether the media files in wp-content/uploads are available. I just want to bring my test installation’s MySQL database server to its knees.

It would be great if it were a WooCommerce test site.

(I’m aware of the theme unit test data file at But it’s not big enough for my specific purpose.)

Is there some such importable dataset available? Is there some sort of tool I can leave running for many hours to generate random data? If it comes to that, how would I create such an automated content production tool?

If I must generate my own load test dataset I’ll definitely GPL it.