Optimize buffer size handling in RAMDirectory to make it more GC friendly
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Key: LUCENE-3924
URL: https://issues.apache.org/jira/browse/LUCENE-3924
Project: Lucene - Java
Issue Type: Improvement
Components: core/store
Affects Versions: 4.0
Reporter: Uwe Schindler
Assignee: Uwe Schindler
Fix For: 4.0
RAMDirectory currently uses a fixed buffer size of 1024 bytes to allocate
memory. This is very wasteful for large indexes. Improvements may be:
- per file buffer sizes based on IOContext and maximum segment size
- allocate only one buffer for files that are copied from another directory
- dynamically increae buffer size when files grow (makes seek() complicated)
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