[ https://issues.apache.org/jira/browse/LUCENENET-425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Digy updated LUCENENET-425: --------------------------- Description: Since this is not a direct port of MMapDirectory.java, I'll put it under "Support" and implement MMapDirectory as {code} public class MMapDirectory:Lucene.Net.Support.MemoryMappedDirectory { } {code} If a Mem-Map can not be created(for ex, if the file is too big to fit in 32 bit address range), it will default to FSDirectory.FSIndexInput In my tests, I didn't see any performance gain in 32bit environment and I consider it as better then nothing. I would be happy if someone could send test results on 64bit platform. DIGY was: Since this is not a direct port of MMapDirectory.java, I'll put it under "Support" and implement MMapDirectory as {code} public class MMapDirectory:Lucene.Net.Support.MemoryMappedDirectory:Lucene.Net.Support.MemoryMappedDirectory { } {code} If a Mem-Map can not be created(for ex, if the file is too big to fit in 32 bit address range), it will default to FSDirectory.FSIndexInput In my tests, I didn't see any performance gain in 32bit environment and I consider it as better then nothing. I would be happy if someone could send test results on 64bit platform. DIGY > MMapDirectory implementation > ---------------------------- > > Key: LUCENENET-425 > URL: https://issues.apache.org/jira/browse/LUCENENET-425 > Project: Lucene.Net > Issue Type: New Feature > Affects Versions: Lucene.Net 2.9.4g > Reporter: Digy > Priority: Trivial > Fix For: Lucene.Net 2.9.4g > > Attachments: MMapDirectory.patch > > > Since this is not a direct port of MMapDirectory.java, I'll put it under > "Support" and implement MMapDirectory as > {code} > public class MMapDirectory:Lucene.Net.Support.MemoryMappedDirectory > { > } > {code} > If a Mem-Map can not be created(for ex, if the file is too big to fit in 32 > bit address range), it will default to FSDirectory.FSIndexInput > In my tests, I didn't see any performance gain in 32bit environment and I > consider it as better then nothing. > I would be happy if someone could send test results on 64bit platform. > DIGY -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira