https://bugzilla.wikimedia.org/show_bug.cgi?id=29921

       Web browser: ---
             Bug #: 29921
           Summary: Loading a page with ResourceLoader takes more time
                    than without that
           Product: MediaWiki
           Version: 1.17
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: Unprioritized
         Component: Resource Loader
        AssignedTo: tpars...@wikimedia.org
        ReportedBy: szots...@gmail.com
                CC: roan.katt...@gmail.com
    Classification: Unclassified


I've just upgraded to MediaWiki 1.17 and also updated my skin file to use
ResourceLoader.
But the problem is with ResourceLoader, that my site is loading from 8 secs to
2 mins… Before it took approximately 4-5 seconds.

After I investigated the issue, I found out, that RL doesn't cache the
generated minimized files, rather than it let a proxy to cache it for own
purpose.

It's very bad, because for a slow server (typical at hosting providers) every
page generation takes a lot of time to generate to all users a dedicated JS and
CSS file (which are mostly the same).

For example phpBB stores its generated cache in the database. Wordpress with
"W3 Total Cache" extension stores every minimized files on the file system
after the first visitor had that generated (and even automatically stores that
on a CDN).

After I disabled the RL and removed it from my skin, the site loads again in 2
seconds.

Here is a thread on it:
http://lists.wikimedia.org/pipermail/mediawiki-l/2011-July/037638.html

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