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I'm trying to set up a WPMU test environment with 5-6K blogs, lots of posts comments, users etc.

Browsing trough the WP's functions, I picked up wp_insert_post, wp_insert_comment, create_empty_blog(), and wp_insert_user().

So basically I would run a big for loop in which I create random blogs, get their ID, switch to each of them and insert posts with random content.

Is this really this easy as it looks? :) Or I'm missing something here?

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Sounds good. I'd also run a performance test when you start it to take the chance to gather some insights. – kaiser Apr 8 '11 at 18:13

I would suggest you take a look at WP Dummy Content.

You can easily extend this plugin or build a script to activate and run it.

As suggested by @kaiser I would really record all the performance data I can to get in insights into this scale of operations.

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