Tutorials & articles written by Thomas Nunninger

Creating a Search Engine

On a big website or intranet, retrieving relevant content is key to site usability. In addition to a navigation structure based on the document hierarchy, most large sites have an internal search engine that accesses indexed content. In this article we look at the challenges involved with creating an internal search engine. This article is also an overview of the current research at eZ Systems in this area. As part of a research project, I have evaluated different relevance-based ranking concepts and have written a basic test implementation using different approaches.

eZ debug

Timing:	Jan 18 2025 18:24:55
Script start
Timing:	Jan 18 2025 18:24:55
Module start 'layout'
Timing:	Jan 18 2025 18:24:55
Module start 'community'
Timing:	Jan 18 2025 18:24:55
Module end 'community'
Timing:	Jan 18 2025 18:24:55
Script end

Main resources:

Total runtime	0.0594 sec
Peak memory usage	4,096.0000 KB
Database Queries	24

Timing points:

Checkpoint	Start (sec)	Duration (sec)	Memory at start (KB)	Memory used (KB)
Script start	0.0000	0.0045	587.7891	152.6094
Module start 'layout'	0.0045	0.0019	740.3984	31.6563
Module start 'community'	0.0064	0.0521	772.0547	426.8281
Module end 'community'	0.0585	0.0009	1,198.8828	10.6406
Script end	0.0594		1,209.5234

Time accumulators:

Accumulator	Duration (sec)	Duration (%)	Count	Average (sec)
Ini load
Load cache	0.0027	4.4799	14	0.0002
Check MTime	0.0011	1.8709	14	0.0001
Mysql Total
Database connection	0.0008	1.3241	1	0.0008
Mysqli_queries	0.0338	56.8544	24	0.0014
Looping result	0.0002	0.3546	21	0.0000
Template Total	0.0442	74.3	2	0.0221
Template load	0.0013	2.1368	2	0.0006
Template processing	0.0429	72.1697	2	0.0214
Template load and register function	0.0002	0.2539	1	0.0002
Override
Cache load	0.0009	1.4902	4	0.0002
states
state_id_array	0.0008	1.4016	1	0.0008
state_identifier_array	0.0003	0.5736	1	0.0003
Sytem overhead
Fetch class attribute name	0.0009	1.5295	1	0.0009
class_abstraction
Instantiating content class attribute	0.0000	0.0084	1	0.0000
General
dbfile	0.0001	0.2110	7	0.0000
String conversion	0.0000	0.0112	3	0.0000
Note: percentages do not add up to 100% because some accumulators overlap

Templates used to render the page:

Usage	Requested template	Template	Template loaded
1	community/articles.tpl	<No override>	extension/community_design/design/suncana/templates/community/articles.tpl
1	content/datatype/view/ezxmltext.tpl	<No override>	extension/community_design/design/suncana/templates/content/datatype/view/ezxmltext.tpl
1	content/datatype/view/ezxmltags/paragraph.tpl	<No override>	extension/ezwebin/design/ezwebin/templates/content/datatype/view/ezxmltags/paragraph.tpl
1	print_pagelayout.tpl	<No override>	extension/community/design/community/templates/print_pagelayout.tpl
Number of times templates used: 4 Number of unique templates used: 4

Time used to render debug report: 0.0001 secs