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Posted to java-user@lucene.apache.org by Peter Carlson <ca...@bookandhammer.com> on 2002/04/10 01:08:52 UTC
Re: Disk I/O in Lucene
Hi,
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.
--Peter
On 4/9/02 2:41 PM, "Donglin Lu" <ql...@yahoo.com> 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
> Lucene?
>
> Thanks.
>
> Alex
>
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Re: Disk I/O in Lucene
Posted by Dmitry Serebrennikov <dm...@earthlink.net>.
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.
Dmitry.
Peter Carlson wrote:
>Hi,
>
>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.
>
>--Peter
>
>
>On 4/9/02 2:41 PM, "Donglin Lu" <ql...@yahoo.com> 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
>>Lucene?
>>
>>Thanks.
>>
>>Alex
>>
>>__________________________________________________
>>Do You Yahoo!?
>>Yahoo! Tax Center - online filing with TurboTax
>>http://taxes.yahoo.com/
>>
>>--
>>To unsubscribe, e-mail: <ma...@jakarta.apache.org>
>>For additional commands, e-mail: <ma...@jakarta.apache.org>
>>
>>
>
>
>--
>To unsubscribe, e-mail: <ma...@jakarta.apache.org>
>For additional commands, e-mail: <ma...@jakarta.apache.org>
>
>
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To unsubscribe, e-mail: <ma...@jakarta.apache.org>
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