[Phpmyadmin-devel] js loading

[Dieter Adriaenssens]

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2010/3/23 Marc Delisle :
> Dieter Adriaenssens a écrit :
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>> Hi,
>>
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>> 2010/3/23 Marc Delisle :
>>> Michael Keck a écrit :
>>>> Hi Marc,
>>>>
>>>> Am 22.03.2010 21:52, schrieb Marc Delisle:
>>>>>> js/jquery would good
>>>>>> and perhabs we should in js/ add a php library wich loads all
needed jquery
>>>>>> scripts. So we need only to add

>>>>>>
>>>>> In library/common.inc.php we are using $GLOBALS['js_include'] which is
>>>>> filled by all other scripts that need to load some js; are you proposing
>>>>> to stop using this mechanism?
>>>>>
>>>> My idea is to improve performance. The common.inc.php is a really large
>>>> file with
>>>> many functions and checks, wich are not needed all times. My opion is:
>>>> perhabs
>>>> it would be easier to manage and improve performance if we use for sending
>>>> javascript (and perhabs in future stylesheets too) a extra parser.
>>>>
>>>> Michael
>>> In Rasmus Lerdorf's presentations, he showed benchmarks that proove that
>>> (in general), what slows down the application is the *number* of include
>>> files (whose opening require a system call), as PHP parsing is quite
>>> optimized.
>>>
>>
>> I think he said that a big amount of once_required/include, causes the
>> delays (because of the extra system call).
>> Using include/require is no problem, but then you need to manage your
>> includes yourself (only once, for the entire codebase).
>
> In fact, in this slide http://talks.php.net/show/ygatech4/7 he says "A
> final optimization is to get rid of an include file"; we would have to
> measure the exact impact of removing just one include in phpMyAdmin but
> there must be some.
>

Interesting stuff, I only read the blogpost you posted earlier.
Of course, you can't get rid of all included files, a project would be
very difficult to browse when everything is in one file. ;)
I wonder if the size of the included files matters? Does a huge
included file load faster than two smaller ones?

Greetings,

Dieter
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