t; >> This is managed by your operating system. In general OS kernels like
>> Linux
>> >> or Windows use all free memory to cache disk accesses.
>> >>
>> >> -
>> >> Uwe Schindler
>> >> H.-H.-Meier-Allee 63, D-28213 Bremen
&
like
> Linux
> >> or Windows use all free memory to cache disk accesses.
> >>
> >> -
> >> Uwe Schindler
> >> H.-H.-Meier-Allee 63, D-28213 Bremen
> >> http://www.thetaphi.de
> >> eMail: u...@thetaphi.de
> >>
> >
;> H.-H.-Meier-Allee 63, D-28213 Bremen
> >> http://www.thetaphi.de
> >> eMail: u...@thetaphi.de
> >>
> >>
> >> > -Original Message-
> >> > From: Cheng [mailto:zhoucheng2...@gmail.com]
> >> > Sent: Monda
> > j...@basetechnology.com
>> > > > >wrote:
>> > > > >
>> > > > >> From the javadoc for RAMDirectory:
>> > > > >>
>> > > > >> "Warning: This class is not intended to work with huge indexes.
>>
hetaphi.de
> eMail: u...@thetaphi.de
>
>
> > -Original Message-
> > From: Cheng [mailto:zhoucheng2...@gmail.com]
> > Sent: Monday, June 04, 2012 6:10 PM
> > To: java-user@lucene.apache.org
> > Subject: Re: RAMDirectory unexpectedly slows
> >
cheng2...@gmail.com]
> Sent: Monday, June 04, 2012 6:10 PM
> To: java-user@lucene.apache.org
> Subject: Re: RAMDirectory unexpectedly slows
>
> Can I control the size of ram given to either MMapDirectory or
> ByteBufferDirectory?
>
> On Mon, Jun 4, 2012 at 11:42 PM, U
ident
> > >> indexes. It also has bad concurrency on multithreaded environments.
> > >>
> > >> It is recommended to materialize large indexes on disk and use
> > >> MMapDirectory, which is a high-performance directory implementation
> > worki
> >> MMapDirectory, which is a high-performance directory implementation
> working
> >> directly on the file system cache of the operating system, so copying
> data
> >> to Java heap space is not useful."
> >>
> >> -- Jack Krupansky
> &
es on disk and use
>> >> MMapDirectory, which is a high-performance directory implementation
>> working
>> >> directly on the file system cache of the operating system, so copying
>> data
>> >> to Java heap space is not useful."
>> >>
> It is recommended to materialize large indexes on disk and use
> >> MMapDirectory, which is a high-performance directory implementation
> working
> >> directly on the file system cache of the operating system, so copying
> data
> >> to Java heap space is not
"
>>
>> -- Jack Krupansky
>>
>> -Original Message- From: Cheng
>> Sent: Monday, June 04, 2012 10:08 AM
>> To: java-user@lucene.apache.org
>> Subject: RAMDirectory unexpectedly slows
>>
>>
>> Hi,
>>
>> My apps need
the file system cache of the operating system, so copying data
> to Java heap space is not useful."
>
> -- Jack Krupansky
>
> -Original Message- From: Cheng
> Sent: Monday, June 04, 2012 10:08 AM
> To: java-user@lucene.apache.org
> Subject: RAMDirectory unexpecte
ystem, so copying data
to Java heap space is not useful."
-- Jack Krupansky
-Original Message-
From: Cheng
Sent: Monday, June 04, 2012 10:08 AM
To: java-user@lucene.apache.org
Subject: RAMDirectory unexpectedly slows
Hi,
My apps need to read from and write to some big indexes
13 matches
Mail list logo
