I've seen some strangle results in the last few days of testing, but this one flies in the face of everything I've read on this forum: Reducing filterCache size has increased performance.
I have posted my setup here: http://www.nabble.com/Throughput-Optimization-td20335132.html. My original filterCache was 700,000. Reducing it to 20,000, I found: - Average response time decreased by 85% - Average throughput increased by 250% - CPU time used by the garbage collector decreased by 85% - The system showed to weird GC issues (reported yesterday at: http://www.nabble.com/new-faceting-algorithm-td20674902.html) Further reducing the filterCache to 10,000 - Average response time decreased by another 27% - Average throughput increased by another 30% - GC CPU usage also dropped - System behavior changed after ~30 minutes, with a slight performance degradation These results came from a load test. I'm running trunk code from Dec 2 with Yonik's faceting improvement turned on. Any thoughts? -- View this message in context: http://www.nabble.com/Smaller-filterCache-giving-better-performance-tp20863674p20863674.html Sent from the Solr - User mailing list archive at Nabble.com.
