The other day I expanded on someone else's blog about load testing Drupal with JMeter, by writing about how one can submit forms, and as such potentially handle deployments, with Drupal.

This entry continues on that theme, but looks at scripting your JMeter plans from Linux shell, to make deployment of many JMeter scripts across many different potential environments much, much easier.

If you type Drupal and JMeter in to Google, you'll probably turn up this useful blog post fairly quickly:
http://www.johnandcailin.com/blog/john/load-test-your-drupal-application...

This is a great "quick start" guide to basic testing of a Drupal application with JMeter, but it only scratches the surface, by the author's own admission.