Unexpected cpu load and Solr incrase response time

Hi, we currently have 2 servers running on JBoss container (master and slave) with 20mln documents and about 3GB index size. Java was executed with options: *-Xms12G -Xmx12G -XX:NewSize=4G -XX:MaxNewSize=4G -XX:MaxPermSize=256m -Dorg.jboss.resolver.warning=true -Dsun.rmi.dgc.client.gcInterval=36000

Solr performance for query without filter

Hi I have one instance of solr running on JBoss with the following schema and partial config: Schema: − − − − − user_id search_text Config: 10 1024 1000 1 1000 1 Index has 41 000 000 documents and 9 GB size. For query like: 1) *q=Jarecki+Jan*&fq=sex:M