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: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
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