Serious problems with viewcache...

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Author	Message
Nicklas Lundgren	Monday 14 April 2008 10:49:44 am Hi folks, I have found a really strange problem in a 3.8.6-site. I noticed bad performance, even though we have been using view-cache and cacheblocks combined. We are quite used to the cache-system of eZ, and normally the sites are running nice. But with this site, its different. I hacked kernel/content/view.php to see which viewcache-file it tries to fetch for a certain page. It says it is fetching cache2/content/customer/60-bd08bfa785266bd29e0a86b71890fbc0.cache However, when I search the whole content cache directory, this file doesnt exist! How can the system search for a viewcache file that doesnt exist? I am really confused. Can it be because we have changed the name of the cache-dir from "cache" to "cache2"? I guess not, since it is allowed to change this directory in the site.ini.file... Any ideas on how I should proceed with this annoying issue, is very welcome... Cheers! /Nicklas Nicklas Lundgren, Managing Director Novitell AB, Sweden
Maxime Thomas	Tuesday 15 April 2008 10:43:18 pm If my memory is ok, you must find a file in the content cache with the mapping between url_alias and the cache2/content/customer/60-bd08bfa785266bd29e0a86b71890fbc0.cache file. But the cache2 is very weird. Have you set it up ? Maxime Thomas maxime.thomas@wascou.org \| www.wascou.org \| http://twitter.com/wascou Company Blog : http://www.wascou.org/eng/Company/Blog Technical Blog : http://share.ez.no/blogs/maxime-thomas

Author

Message

Monday 14 April 2008 10:49:44 am

Hi folks,
I have found a really strange problem in a 3.8.6-site.
I noticed bad performance, even though we have been using view-cache and cacheblocks combined. We are quite used to the cache-system of eZ, and normally the sites are running nice.

But with this site, its different. I hacked kernel/content/view.php to see which viewcache-file it tries to fetch for a certain page.

It says it is fetching cache2/content/customer/60-bd08bfa785266bd29e0a86b71890fbc0.cache

However, when I search the whole content cache directory, this file doesnt exist!

How can the system search for a viewcache file that doesnt exist? I am really confused.

Can it be because we have changed the name of the cache-dir from "cache" to "cache2"? I guess not, since it is allowed to change this directory in the site.ini.file...

Any ideas on how I should proceed with this annoying issue, is very welcome...

Cheers!
/Nicklas

Nicklas Lundgren, Managing Director
Novitell AB, Sweden

Maxime Thomas

Tuesday 15 April 2008 10:43:18 pm

If my memory is ok, you must find a file in the content cache with the mapping between url_alias and the cache2/content/customer/60-bd08bfa785266bd29e0a86b71890fbc0.cache
file.

But the cache2 is very weird. Have you set it up ?

Maxime Thomas
maxime.thomas@wascou.org | www.wascou.org | http://twitter.com/wascou

Company Blog : http://www.wascou.org/eng/Company/Blog
Technical Blog : http://share.ez.no/blogs/maxime-thomas

eZ debug

Timing:	Jan 18 2025 19:05:34
Script start
Timing:	Jan 18 2025 19:05:34
Module start 'layout'
Timing:	Jan 18 2025 19:05:34
Module start 'content'
Timing:	Jan 18 2025 19:05:35
Module end 'content'
Timing:	Jan 18 2025 19:05:35
Script end

Main resources:

Total runtime	0.7624 sec
Peak memory usage	4,096.0000 KB
Database Queries	54

Timing points:

Checkpoint	Start (sec)	Duration (sec)	Memory at start (KB)	Memory used (KB)
Script start	0.0000	0.0100	587.9141	152.6250
Module start 'layout'	0.0100	0.0040	740.5391	39.4453
Module start 'content'	0.0140	0.7468	779.9844	536.7656
Module end 'content'	0.7608	0.0016	1,316.7500	12.1563
Script end	0.7624		1,328.9063

Time accumulators:

Accumulator	Duration (sec)	Duration (%)	Count	Average (sec)
Ini load
Load cache	0.0033	0.4381	16	0.0002
Check MTime	0.0013	0.1682	16	0.0001
Mysql Total
Database connection	0.0018	0.2390	1	0.0018
Mysqli_queries	0.7041	92.3496	54	0.0130
Looping result	0.0014	0.1864	52	0.0000
Template Total	0.7124	93.4	2	0.3562
Template load	0.0027	0.3567	2	0.0014
Template processing	0.7097	93.0844	2	0.3548
Template load and register function	0.0001	0.0190	1	0.0001
states
state_id_array	0.0062	0.8119	1	0.0062
state_identifier_array	0.0026	0.3376	2	0.0013
Override
Cache load	0.0020	0.2598	20	0.0001
Sytem overhead
Fetch class attribute can translate value	0.0011	0.1396	2	0.0005
Fetch class attribute name	0.0021	0.2723	4	0.0005
XML
Image XML parsing	0.0032	0.4208	2	0.0016
class_abstraction
Instantiating content class attribute	0.0000	0.0012	4	0.0000
General
dbfile	0.0032	0.4193	23	0.0001
String conversion	0.0000	0.0012	4	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	node/view/full.tpl	full/forum_topic.tpl	extension/sevenx/design/simple/override/templates/full/forum_topic.tpl
2	content/datatype/view/ezimage.tpl	<No override>	extension/sevenx/design/simple/templates/content/datatype/view/ezimage.tpl
2	content/datatype/view/ezxmltext.tpl	<No override>	extension/community_design/design/suncana/templates/content/datatype/view/ezxmltext.tpl
3	content/datatype/view/ezxmltags/line.tpl	<No override>	design/standard/templates/content/datatype/view/ezxmltags/line.tpl
3	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: 12 Number of unique templates used: 6

Time used to render debug report: 0.0001 secs