[LUCENE-3198] Change default Directory impl on 64bit linux to MMap

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.3, 4.0-ALPHA
• Component/s: core/store
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: Michael McCandless
• Created: 13/Jun/11 19:28
• Updated: 02/Jul/11 02:40
• Resolved: 14/Jun/11 15:43

Description

Consistently in my NRT testing on Fedora 13 Linux, 64 bit JVM (Oracle 1.6.0_21) I see MMapDir getting better search and merge performance when compared to NIOFSDir.

I think we should fix the default.