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From Ole Ersoy <ole_er...@yahoo.com>
Subject Re: [ApacheDS] [Performance] Using indices to boost search performance
Date Sun, 03 Sep 2006 00:38:48 GMT
Oh - Sorry for the confusion - I meant that as a
compliment - But nice insight addition,

- Ole

--- Emmanuel Lecharny <elecharny@gmail.com> wrote:

> Ole Ersoy a écrit :
> 
> >I'm going to read this email as soon as the smoke
> >clears...
> >  
> >
> Nothing really complicated :)
> 
> The idea is to do a performance measure before doing
> some optimisation 
> on some part of the code, so Alex will have a clear
> vision of what kind 
> of performance improvment he will obtain.
> 
> Here, what we can say from those tests, is that the
> indices are not 
> really optimal : it seems that the time to grab
> entries grow linearly 
> with the growth of the database. For instance, from
> 300 000 entries to 
> 400 000 entries, we have an increase in time to
> search for some entries 
> which is similar than from 200 000 to 300 000 : 6.04
> sec for 200K, 7.14 
> for 300K, 9.24 for 400K. We would excpect the growth
> to be logarithmic.
> 
> Alex is working on that currently.
> 
> There is a page on confluence where we have put some
> thought about 
> backend, and it would be cool to add any comment,
> thought, improvment, 
> ideas :
> http://docs.safehaus.org/display/APACHEDS/Backend
> 
> Emmanuel.
> 
> 


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