Hey All- we run a http://carsabi.com car search engine with Solr and did some benchmarking recently after we switched from a hosted service to self-hosting. In brief, we went from 800ms complex range queries on a 1.5M document corpus to 43ms. The major shifts were switching from EC2 Large to EC2 CC8XL which got us down to 282ms (2.82x speed gain due to 2.75x CPU speed increase we think), and then down to 43ms when we sharded to 8 cores. We tried sharding to 12 and 16 but saw negligible gains after this point.
Anyway, hope this might be useful to someone - we write up exact stats and a step by step sharding procedure on our http://carsabi.com/car-news/2012/03/23/optimizing-solr-7x-your-search-speed/ tech blog if anyone's interested. best Dwight -- View this message in context: http://lucene.472066.n3.nabble.com/Practical-Optimization-tp3852776p3852776.html Sent from the Solr - User mailing list archive at Nabble.com.
