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From Dmitry Serebrennikov <>
Subject Re: Disk I/O in Lucene
Date Tue, 09 Apr 2002 23:36:43 GMT
It might also be an interesting project to implement an NIODirectory, 
which would be just like the current FileDirectory, but would use the 
nio API. Lucene's abstraction of a Directory should make this possible, 
I think.


Peter Carlson wrote:

>Lucene does not use the new nio API's in 1.4 (in fact it is compatible back
>to 1.1.8).
>What kind of bench marks are you looking for? I am currently searching over
>100K documents in about .015 seconds for a simple query on a Sun Netra T1
>(450 Mhz).
>If you have a real need for speed, Lucene also supports a RAM Directory to
>store the index. I have not used this, but heard it's faster.
>On 4/9/02 2:41 PM, "Donglin Lu" <> wrote:
>>Hi, I am newbie to Lucene and have a question about
>>Lucene's disk I/O.
>>For JDK 1.4 has java.nio APIs, does Lucene use this
>>new I/O library to improve the disk I/O performance?
>>Are they any benchmark about the performance of
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