Re: Improving performance with TT2

On Sun, Feb 19, 2012 at 4:20 PM, Perrin Harkins <[email protected]> wrote:
> [ Please keep replies on the list. ]
>
> 2012/2/19 Frédéric Buclin <[email protected]>:
>> Le 19. 02. 12 21:57, Perrin Harkins a écrit :
>>> That is slow!  Are you talking about actual CGI, or are you running in
>>> a persistent environment like mod_perl or FastCGI?
>>
>> Bugzilla supports both modes: mod_cgi and mod_perl. For instance,
>> https://bugzilla.mozilla.org uses mod_perl, but there are many
>> installations around the world still using mod_cgi.
>
> Ok.  For mod_perl, you should take care to keep your Template object
> around between requests, so that it can use the same cache.  That
> makes a huge difference.
>
> For CGI (and this won't hurt mod_perl either), you should set
> COMPILE_EXT and COMPILE_DIR.  More here:
> http://tt2.org/docs/modules/Template.html#section_Caching_and_Compiling_Options
>
> If that isn't enough to make CGI performance decent, you'll probably
> have to consider using a different template module.  CGI is an extreme
> case and most template systems will perform badly when they can't
> cache between requests.  Text::MicroTemplate is probably your best bet
> under CGI.
>
>> Is there a better tool than Devel::NYTProf to debug TT? It seems to
>> return wrong line numbers when looking at templates.
>
> It's probably giving you line numbers of the compiled templates, not
> the original template source.  If you turn on the compile cache
> options I mentioned above you'll be able to look at the files it
> compiles from your templates and the line numbers will make more
> sense.
>
> - Perrin