[ci skip] 3.1.9 release

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diff --git a/user_guide_src/source/general/profiling.rst b/user_guide_src/source/general/profiling.rst
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-##########################
-Profiling Your Application
-##########################
-
-The Profiler Class will display benchmark results, queries you have run,
-and ``$_POST`` data at the bottom of your pages. This information can be
-useful during development in order to help with debugging and
-optimization.
-
-Initializing the Class
-======================
-
-.. important:: This class does NOT need to be initialized. It is loaded
-	automatically by the :doc:`Output Library <../libraries/output>`
-	if profiling is enabled as shown below.
-
-Enabling the Profiler
-=====================
-
-To enable the profiler place the following line anywhere within your
-:doc:`Controller <controllers>` methods::
-
-	$this->output->enable_profiler(TRUE);
-
-When enabled a report will be generated and inserted at the bottom of
-your pages.
-
-To disable the profiler you will use::
-
-	$this->output->enable_profiler(FALSE);
-
-Setting Benchmark Points
-========================
-
-In order for the Profiler to compile and display your benchmark data you
-must name your mark points using specific syntax.
-
-Please read the information on setting Benchmark points in the
-:doc:`Benchmark Library <../libraries/benchmark>` page.
-
-Enabling and Disabling Profiler Sections
-========================================
-
-Each section of Profiler data can be enabled or disabled by setting a
-corresponding config variable to TRUE or FALSE. This can be done one of
-two ways. First, you can set application wide defaults with the
-*application/config/profiler.php* config file.
-
-Example::
-
-	$config['config']          = FALSE;
-	$config['queries']         = FALSE;
-
-In your controllers, you can override the defaults and config file
-values by calling the ``set_profiler_sections()`` method of the
-:doc:`Output Library <../libraries/output>`::
-
-	$sections = array(
-		'config'  => TRUE,
-		'queries' => TRUE
-	);
-
-	$this->output->set_profiler_sections($sections);
-
-Available sections and the array key used to access them are described
-in the table below.
-
-======================= =================================================================== ========
-Key                     Description                                                         Default
-======================= =================================================================== ========
-**benchmarks**          Elapsed time of Benchmark points and total execution time           TRUE
-**config**              CodeIgniter Config variables                                        TRUE
-**controller_info**     The Controller class and method requested                           TRUE
-**get**                 Any GET data passed in the request                                  TRUE
-**http_headers**        The HTTP headers for the current request                            TRUE
-**memory_usage**        Amount of memory consumed by the current request, in bytes          TRUE
-**post**                Any POST data passed in the request                                 TRUE
-**queries**             Listing of all database queries executed, including execution time  TRUE
-**uri_string**          The URI of the current request                                      TRUE
-**session_data**        Data stored in the current session                                  TRUE
-**query_toggle_count**  The number of queries after which the query block will default to   25
-                        hidden.
-======================= =================================================================== ========
-
-.. note:: Disabling the :doc:`save_queries </database/configuration>` setting in
-	your database configuration will also effectively disable profiling for
-	database queries and render the 'queries' setting above useless. You can
-	optionally override this setting with ``$this->db->save_queries = TRUE;``.
-	Without this setting you won't be able to view the queries or the
-	`last_query <database/helpers>`.
\ No newline at end of file