Feature #20717

Store separate extlist for the frontend

Added by Mathias Schreiber almost 8 years ago. Updated almost 7 years ago.

Should have
Target version:
Start date:
Due date:
% Done:


PHP Version:
Sprint Focus:


If you have a lot of extensions loaded your frontend and backend becomes slower and slower.
In order to at least reduce the load a bit we introduce a new parameter to the EM_CONF called "doNotLoadInFE".
If set to "1" this extension will not be included in the extlist to be loaded in the frontend.
This also affects the temp_cached_* files in typo3conf which will also be newly created.

(issue imported from #M11474)

11474.diff View (3.8 KB) Administrator Admin, 2009-07-04 20:29

11474_v2.diff View (4.98 KB) Administrator Admin, 2009-07-14 18:53

Related issues

Related to Core - Bug #20718: Add 'doNotLoadInFE' => 1, to several system extensions, speeding up the frontend Closed 2009-07-04
Related to Core - Bug #20960: Update wizard doesn't write "extListFE" Closed 2009-08-31
Related to Core - Bug #20379: Generate Random Key still does not work Closed 2009-04-30


#1 Updated by Rupert Germann almost 8 years ago

I added v2 of the patch which fixes the following problems:
1. if "extList_FE" is not yet set in localconf.php the extmgm falls back to the standard "extList"
2. Now the temp_CACHED_FE... will be deleted when the temp_CACHED.. files are deleted.

#2 Updated by Rupert Germann almost 8 years ago

Some benchmarks:
My server is a standard installation with only a few FE extensions enabled.

siege -c 15 -i -b -t 2M -f urls43_perf.txt

4.3 current trunk
Transactions: 31626 hits
Availability: 100.00 %
Elapsed time: 119.79 secs
Data transferred: 780.77 MB
Response time: 0.06 secs
Transaction rate: 264.01 trans/sec
Throughput: 6.52 MB/sec
Concurrency: 14.96
Successful transactions: 31626
Failed transactions: 0
Longest transaction: 0.52
Shortest transaction: 0.00

with patch 11474
Transactions: 33495 hits
Availability: 100.00 %
Elapsed time: 119.65 secs
Data transferred: 827.24 MB
Response time: 0.05 secs
Transaction rate: 279.94 trans/sec
Throughput: 6.91 MB/sec
Concurrency: 14.97
Successful transactions: 33495
Failed transactions: 0
Longest transaction: 0.49
Shortest transaction: 0.00

trunk = 100%
patched = 106%

temp_CACHED...ext_tables.php 80 KB
temp_CACHED...ext_localconf.php 62 KB

temp_CACHED...ext_tables.php 45 KB
temp_CACHED...ext_localconf.php 48 KB

extlist in localconf.php:

$TYPO3_CONF_VARS['EXT']['extList'] = 'css_styled_content,tsconfig_help,extra_page_cm_options,impexp,sys_note,tstemplate,tstemplate_ceditor,

additional FE extlist after patch:

$TYPO3_CONF_VARS['EXT']['extList_FE'] = 'css_styled_content,rtehtmlarea,phpmyadmin,automaketemplate,cc_debug,tt_news,felogin,indexed_search,devlog';

#3 Updated by Rupert Germann almost 8 years ago


Even when testing this patch with only a few extensions I had a performance gain of 6%. When there are more extensions on the server which can be excluded from being loaded in FE the performance improvement will be even bigger.

#4 Updated by Rupert Germann almost 8 years ago

committed to trunk rev 5765

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