Are there any tools out there that can torture-test and measure AD performance? We're looking at a fairly major expansion of our environment (think tens of thousands of computers) that will throw lots of transactions at our AD environment.
We suspect that we need to add hardware to our core network, but I don't want to buy hardware blindly and either waste money or hurt performance for the users.
Any ideas? I'm thinking of a tool to generate synthetic transactions, but I'm willing to accept any suggestions.