Hi,
By design memory outside the JVM heap space should not be accessible for java applications. Why you might see is the disc cache of the Linux storage subsystem. Best Regards Lutz -----Original Message----- From: Chris Bamford [mailto:chris.bamf...@talktalk.net] Sent: Dienstag, 15. Mai 2012 09:47 To: java-user@lucene.apache.org Subject: Memory question Hi Can anyone tell me what happens to the memory when Lucene opens an index? Is it loaded into the JVM's heap or is it mapped into virtual memory outside of it? I am running on Linux and if I use pmap on the PID of my JVM, I can see lots of entries for index cfs files. Does this mean that indexes are mapped into non-heap memory? If so, how can I monitor the space my process is using if I cache open IndexSearchers? The details are: Sun 64-bit JVM on Linux. Lucene 3.6 running in 2.3 compatibility mode (as we are in the in the process of a migration to 3.6) Thanks, - Chris --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
