I've been making modifications here and there to the Solr source code in hopes to optimize for my particular setup. My goal now is to establish a descent benchmark toolset so that I can evaluate the observed performance increase before deciding rolling out. So far I've investigated Jmeter and Lucid Gaze, but each seem to have pretty steep learning curves, so I thought I'd ping the group before I sink a good chunk of time into either. My ideal performance metrics aren't so much load testing, but rather response time testing for different query types across different Solr configurations.
If anybody has some insight into this kind of project I'd love to get some feedback. Thanks in advance, Mike Anderson