Convert - Cache

Friday 05 December 2008 12:56:11 am

Hi there,

Hope someone can help me. Version 4.0.0 - In one of pages I have written a template script to display latest 5 news items (with title, short description and an image) from the NEWS section. Before that script I have disabled the cache with the following line, because when I am uploading an article in the NEWS section, the 5 latest items are not being updated. It is working fine if I write the following code before the script.

{set-block scope=root variable=cache_ttl}0{/set-block}

Yesterday I was checking the performance and time taken to load the page in which the latest 5 news items are being displayed. Every time I refresh the page, I can see CONVERT command being executed. I think this is for the resizing the images in the 5 news items. Is there any way to stop executing CONVERT everytime when somebody loads the page. I know this is because of SET-BLOCK statement, but if I am not writing it, the news items are not getting updated...

All this is not happening in the News section itself.

Please help.

Friday 05 December 2008 1:39:13 am

I think there is a bug in ezpublish 4.0.0 with this (http://issues.ez.no/IssueView.php?Id=12386&activeItem=3). Try to update to 4.0.1, or get the last kernel/classes/datatypes/ezimage/ezimagealiashandler.php

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Friday 05 December 2008 1:55:37 am

Of course, but that will never be as fast as taking advantage of the view cache system.
We did some benchmarks recently and got something like:
~130 request/sec with view cache
~90 request/sec with view cache disabled and all but the line disabling the view cache inside a cache block
~32 request/sec with view disabled and no cache block in the node template

Pagelayout was tweaked so only a few lines where outside the two 'root' cache blocks (one for header and one for footer).
The numbers where using eZ Publish trunk (4.1, 4.0.1 was about ~8% behind) on a quad-core Xeon 2.5GHz.

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