Hi GT,

I have a question about when and where to run custom coding(plugin or template). The template codes allows for us to do something like:
<%Links::MyCustomCodes::mysubroutine(param1=>something,param2=>something)%> I love this and use it all the time, but lately since 3.x upgrades have wondered if this results in significant performance issues.

I have certainly identified performance problems with MY code between 2.x and 3.x, but this is more of a general performance question which is... Is there a performance issue when calling custom code through a template.

For example, it's possible to run the logic for entire program by using a template as a controller like this:
<%if somevalue%>
<%Links:myscript:runthisroutine()%>
<%include thistemplate.html%>
<%elsif someothervalue%>
<%Links:myscript:runthisotherroutine()%>
<%include thisothertemplate.html%>
<%else%>
<%Links:myscript:defaultroutine()%>
<%include defaulttemplate.html%>
<%endif%>

Is that as fast as running those if statements inside of a plugin perl script before processing the template?

thank you for any insight you can provide.

peace.

It's definitely going to be slower doing things in the templates like that, but with something as short as that, it shouldn't be a noticeable difference.

Adrian

Thanks brewt,

That helps. Just a follow up. If I'm running something like this in link.html

<%Links::mycode::myfunction()%> - as that gets iterated over at least 25 times under default settings - do I assume that this represents a significant decrease in performance.

thank you for your insight.

peace.

Depending on what your function does and the speed of it, yes, it could slow things down.

Adrian

Hi Brewt,

So calling an external function in and of itself doesn't decrease performance?
(I realize that what I do in the code can make a huge difference)

ie is there a performance difference between the following:

In the code:
while (my $link = $sth->fetchrow_hashref) {
$link->{myDescription} = Links::myscript::mycode($link->{Description});
}

vs.

In the template:
<%loop links_loop%>
...
<%Links::myscript::mycode($Description)%>
...
<%endloop%>


Thanks, I promise this will be my last question about this.

peace.

As I mentioned before, there's a bit of overhead of running things in the templates, but if it's only a small loop being looped a small number of times (like less than 50?), then it should be okay. You can always do it both ways and see how much of a difference it makes.

Adrian