[Phpmyadmin-devel] Concatenating js files

Marc Delisle marc at infomarc.info
Tue Dec 18 18:16:50 CET 2012

Rouslan Placella a écrit :
> Hi all,
> I've written a patch[0] that will concatenate js files on the server 
> side before sending them to the client. This will reduce the number of 
> http requests for js files to one per page. So, effectively, there will 
> be one request for js files when a user first loads a pma page and 
> subsequently there will 0 or 1 request (depending if we already have the 
> needed js file already loaded client side) for any additional page the 
> user navigates to. The patch would also close feature request[1] #3583340.
> The performance benefits should be pretty obvious. You can see a 
> screenshot[2] of the firebug network panel that I took before and after 
> the patch. In the screenshot, I started on the main page and went to 4 
> different server status pages afterwards. This was on a local 
> installation, remote installations should benefit even more...
> The reason that I'm bringing this issue up on the mailing list is that 
> there is also a drawback. Debugging js files will become somewhat more 
> complex, since we would have to figure out which file a problem might be in.

If it's just a matter of grepping to find in which file some code is, 
I'm willing to pay this price.

I assume that this big file would still be usable in Firebug's script 

> So the question is: are we willing to pay the price for this performance 
> boost?
> Bye,
> Rouslan
> [0]: https://github.com/roccivic/phpmyadmin/tree/js-file-loader
> [1]: 
> http://sourceforge.net/tracker/?func=detail&aid=3583340&group_id=23067&atid=377411
> [2]: http://www.placella.com/temp/js-file-loader.png
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Marc Delisle

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