[ http://issues.apache.org/jira/browse/LUCENE-753?page=comments#action_12459971 ]
Bogdan Ghidireac commented on LUCENE-753:
-----------------------------------------
The Javadoc says that transferTo can be more efficient because the OS can transfer bytes directly
from the filesystem cache to the target channel without actually copying them.
> Use NIO positional read to avoid synchronization in FSIndexInput
> ----------------------------------------------------------------
>
> Key: LUCENE-753
> URL: http://issues.apache.org/jira/browse/LUCENE-753
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Store
> Reporter: Yonik Seeley
> Attachments: FSIndexInput.patch, FSIndexInput.patch
>
>
> As suggested by Doug, we could use NIO pread to avoid synchronization on the underlying
file.
> This could mitigate any MT performance drop caused by reducing the number of files in
the index format.
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