Configuration¶
Extension Settings¶
Head over to the Settings module of TYPO3 in the left menu of TYPO3 backend
and choose Configure Extensions. Open the accordion for mysqlreport.
profileFrontend¶
Activate profiling for frontend requests
mysqlreport will only collect the queries with their execution times and
query type (SELECT/INSERT/UPDATE/DELETE).
profileBackend¶
Activate profiling for backend requests
mysqlreport will only collect the queries with their execution times and
query type (SELECT/INSERT/UPDATE/DELETE).
addExplain¶
After activating this setting mysqlreport will start an additional profiling
of each individual query. It collects the timings of each
step (Query Cache, Authentication, collect data) the database server needs to
execute the query internally. Further mysqlreport executes each query again
with a prefixed EXPLAIN to retrieve detailed index and performance
information. You will see these additional information in backend module
of mysqlreport in section Profiling in the detail view of a selected query.
Note
If this feature is activated it can slow down your TYPO3 system a lot. Please keep that in mind and activate that options for some minutes or few hours, but not days or weeks. The additional data can grow very fast and can exceed your DB storage very fast. A size of over 6 GB is not seldom!
Warning
With help of the integrated SqlLogger for Doctrine the additional
SHOW profile; query will be executed immediatly after the original query.
As that additional query does not have an autoincrement, it will reset
the internal mysqli information of the last query. That means: If
the PHP code needs the insert_id after an INSERT or affected_rows
after an UPDATE query, these infomation are lost (0). F.E. saving
new scheduler tasks will throw an exception.
slowQueryTime¶
mysqlreport can NOT read the original queries from Slow Query Log of your
server. But, as we already have collected the duration of all queries, we can
show the first 100 queries with a duration higher than the configured value
here (Default: 10.0 seconds).
If you want to see queries slower that slowQueryTime you have to activate one of these profile checkboxes from above.