* [Home](help)
-Feel free to ask in the [Friendica support forum](https://forum.friendi.ca/profile/helpers) if you need some clarification about the following instructions or if you need help in any other way.
+Feel free to ask in the [Friendica support group](https://forum.friendi.ca/profile/helpers) if you need some clarification about the following instructions or if you need help in any other way.
System configuration
--------
### rendertime
-This addon doesn't speed up your system.
+This addon doesn't speed up your system.
It helps to analyze your bottlenecks.
When enabled you see some values at the bottom of every page.
### Database
-There are scripts like [tuning-primer.sh](http://www.day32.com/MySQL/) and [mysqltuner.pl](http://mysqltuner.pl) that analyze your database server and give hints on values that could be changed.
+There are scripts like [tuning-primer.sh](https://github.com/BMDan/tuning-primer.sh) and [mysqltuner.pl](https://github.com/major/MySQLTuner-perl/blob/master/mysqltuner.pl) that analyze your database server and give hints on values that could be changed.
Please enable the slow query log. This helps to find performance problems.