If you need help with indexed query performance,
you need to send us your XPATH querys
that you used in your tests. A simplified sample
of the documents you are indexing (at least
showing the structure of the main document
and indexed elements/attributes) would be useful too.

-Terry

Patrick Percot wrote:

From: Patrick Percot <[EMAIL PROTECTED]>
Subject: Use of indexes
Date: Sun, 29 Feb 2004 09:09:54 +0100 (CET)



Hello,

I have made some tests on xindice. It seems to be fast for some
operations, but a bit slow while performing xpath operations.


I tried to add an index on the tag used in the requests, but it took the
same time with the index than without it.

What's the reason ?




I forgot to say that those tests where performed with 120 Mo of XML files of different sizes (200 files from 200Ko to 2Mo), on a laptop equipped of a Duron 1GhZ with 256 Mo of memory. I know that a 2Ghz 512 Mo machine would be a better choice.



[EMAIL PROTECTED]:/usr/src/CDS/SRD/Exemples/liens$ time 
/usr/local/xindice-1.1b3/bin/xindice xpath -c 
xmldb:xindice://localhost:8080/db/AD56 -q `cat 
~/dess-asir/projet/tests/xindice/xindice-rq2`
[DEBUG] DatabaseImpl - -Using SAX Driver: 'xerces'
[DEBUG] DatabaseImpl - -Using Service Location: '/xindice/'
[DEBUG] CollectionImpl - -Using URL: 'http://localhost:8080/xindice/'

[....]

<titleproper xmlns:src="http://xml.apache.org/xindice/Query"; src:col="/db/AD56" 
src:key="f9-AD50.xml">1396 W : distribution de l&apos;�nergie �lectrique</titleproper>

real    1m43.576s
user    0m1.470s
sys     0m0.060s


[EMAIL PROTECTED]:/usr/src/CDS/SRD/Exemples/liens$ time /usr/local/xindice-1.1b3/bin/xindice add_indexer -c xmldb:xindice://muaddib:8080/db/AD56 -n indextitleproper -p titleproper [DEBUG] DatabaseImpl - -Using SAX Driver: 'xerces' [DEBUG] DatabaseImpl - -Using Service Location: '/xindice/' [DEBUG] CollectionImpl - -Using URL: 'http://muaddib:8080/xindice/' CREATED : indextitleproper

real    0m2.488s
user    0m1.700s
sys     0m0.070s

(Indexation seems to be performed in background)

[EMAIL PROTECTED]:/usr/src/CDS/SRD/Exemples/liens$ time 
/usr/local/xindice-1.1b3/bin/xindice xpath -c xmldb 
:xindice://localhost:8080/db/AD56 -q `cat 
~/dess-asir/projet/tests/xindice/xindice-rq2`
[DEBUG] DatabaseImpl - -Using SAX Driver: 'xerces'
[DEBUG] DatabaseImpl - -Using Service Location: '/xindice/'
[DEBUG] CollectionImpl - -Using URL: 'http://localhost:8080/xindice/'

[....]

<titleproper xmlns:src="http://xml.apache.org/xindice/Query"; src:col="/db/AD56" 
src:key="f9-AD50.xml">139 6 W : distribution de l&apos;énergie électrique</titleproper>

real    1m42.310s
user    0m1.490s
sys     0m0.090s


A+ PP -- Groupe Morbihannais d'Utilisateurs de Logiciels Libres http://www.tuxbihan.org Identifiant Jabber: [EMAIL PROTECTED] GPG fingerprint = 1A4F E154 3D2C A20E E4CA A543 7951 C5C2 E44A A0B5

Patrick Percot.




A+
PP


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