> > Finally we are seeing great improvement once we switch to 64-bit java and > MMapDirectory. Our Test run (multiple requests) used to take 26 minutes on > 32-bit and is now improved to 10 minutes on 64-bit java. > > We load stored documents from lucene and pass the documents to a third > party libray (closed source) for further processing (Note: we can not > utilize inverted index for this processing). The third party library is > memory intensive and it needs around 10GB of heap memory for our load. We > have a cap of 16GB system memory available and our index is of 8GB in size > so that means only 6GB is available for fscache. I would like to hear views > on this kind of configuration. > > reference: > http://blog.thetaphi.de/2012/07/use-lucenes-mmapdirectory-on-64bit.html >
