Very interesting, never heard about that. We tested on our x64 linux with java 1.8.0_51 and result is:
java -jar -Xms31g -Xmx31g -Xmn50m memory.jar Total Memory (in bytes): 33279705088 Free Memory (in bytes): 33277314136 Max Memory (in bytes): 33279705088 Elements created and added to LinkedList: 590759777 java -jar -Xms32g -Xmx32g -Xmn50m memory.jar Total Memory (in bytes): 34353446912 Free Memory (in bytes): 34351055880 Max Memory (in bytes): 34353446912 Elements created and added to LinkedList: 386377267 java -jar -Xms48g -Xmx48g -Xmn50m memory.jar Total Memory (in bytes): 51533316096 Free Memory (in bytes): 51530925064 Max Memory (in bytes): 51533316096 Elements created and added to LinkedList: 580258531 It seems that most elements are really on 31G, but can we say that Solr application is used like a number of elements from this result? -- View this message in context: http://lucene.472066.n3.nabble.com/GC-parameters-tuning-for-core-of-140M-docs-on-50G-of-heap-memory-tp4224813p4224856.html Sent from the Solr - User mailing list archive at Nabble.com.
