diff --git a/system/codeigniter/CodeIgniter.php b/system/codeigniter/CodeIgniter.php
index a4f18b0..32c08c8 100644
--- a/system/codeigniter/CodeIgniter.php
+++ b/system/codeigniter/CodeIgniter.php
@@ -51,7 +51,7 @@
*/
$BM =& _load_class('Benchmark');
-$BM->mark('code_igniter_start');
+$BM->mark('total_execution_time_start');
/*
* ------------------------------------------------------
diff --git a/system/libraries/Benchmark.php b/system/libraries/Benchmark.php
index d8dd903..feedbf5 100644
--- a/system/libraries/Benchmark.php
+++ b/system/libraries/Benchmark.php
@@ -86,6 +86,38 @@
// --------------------------------------------------------------------
/**
+ * Auto Profiler
+ *
+ * This function cycles through the entire array of mark points and
+ * matches any two points that are named identially (ending in "_start"
+ * and "_end" respectively). It then compiles the execution times for
+ * all points and returns it as an array
+ *
+ * @access public
+ * @return array
+ */
+ function auto_profiler()
+ {
+ $marker_keys = array_reverse(array_keys($this->marker));
+
+ $times = array();
+ foreach ($marker_keys as $val)
+ {
+ if (preg_match("/(.+?)_start/i", $val, $match))
+ {
+ if (isset($this->marker[$match[1].'_end']))
+ {
+ $times[$match[1]] = $this->elapsed_time($val, $match[1].'_end');
+ }
+ }
+ }
+
+ return $times;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
* Memory Usage
*
* This function returns the {memory_usage} pseudo-variable.
diff --git a/system/libraries/Output.php b/system/libraries/Output.php
index 1c3f0d6..b5b7c9e 100644
--- a/system/libraries/Output.php
+++ b/system/libraries/Output.php
@@ -31,6 +31,7 @@
var $final_output;
var $cache_expiration = 0;
var $headers = array();
+ var $enable_profiler = FALSE;
function CI_Output()
{
@@ -90,6 +91,20 @@
// --------------------------------------------------------------------
/**
+ * Enable/disable Profiler
+ *
+ * @access public
+ * @param bool
+ * @return void
+ */
+ function enable_profiler($val = TRUE)
+ {
+ $this->enable_profiler = (is_bool($val)) ? $val : TRUE;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
* Set Cache
*
* @access public
@@ -123,7 +138,7 @@
*/
function _display($output = '')
{
- // Note: We can't use $obj =& _get_instance() since this function
+ // Note: We can't use $obj =& get_instance() since this function
// is sometimes called by the caching mechanism, which happens before
// it's available. Instead we'll use globals...
global $BM, $CFG;
@@ -141,7 +156,7 @@
// Parse out the elapsed time and memory usage, and
// swap the pseudo-variables with the data
- $elapsed = $BM->elapsed_time('code_igniter_start', 'code_igniter_end');
+ $elapsed = $BM->elapsed_time('total_execution_time_start', 'total_execution_time_end');
$memory = ( ! function_exists('memory_get_usage')) ? '0' : round(memory_get_usage()/1024/1024, 2).'MB';
$output = str_replace('{memory_usage}', $memory, $output);
@@ -166,14 +181,28 @@
{
@header($header);
}
- }
+ }
// Send the finalized output either directly
// to the browser or to the user's _output()
// function if it exists
- if (function_exists('_get_instance') AND method_exists($obj, '_output'))
+ if (function_exists('get_instance'))
{
- $obj->_output($output);
+ $obj =& get_instance();
+
+ if ($this->enable_profiler == TRUE)
+ {
+ $output .= $this->_run_profiler();
+ }
+
+ if (method_exists($obj, '_output'))
+ {
+ $obj->_output($output);
+ }
+ else
+ {
+ echo $output; // Send it to the browser!
+ }
}
else
{
@@ -295,6 +324,37 @@
return TRUE;
}
+ // --------------------------------------------------------------------
+
+ /**
+ * Run the Auto-profiler
+ *
+ * @access private
+ * @return string
+ */
+ function _run_profiler()
+ {
+ $obj =& get_instance();
+
+ $profile = $obj->benchmark->auto_profiler();
+
+ $output = '';
+ if (count($profile) > 0)
+ {
+ $output .= "\n\n<table cellpadding='4' cellspacing='1' border='0'>\n";
+
+ foreach ($profile as $key => $val)
+ {
+ $key = ucwords(str_replace(array('_', '-'), ' ', $key));
+ $output .= "<tr><td><strong>".$key."</strong></td><td>".$val."</td></tr>\n";
+ }
+
+ $output .= "</table>\n";
+ }
+
+ return $output;
+ }
+
}
// END Output Class
?>
\ No newline at end of file
diff --git a/user_guide/general/changelog.html b/user_guide/general/changelog.html
index 1cac05d..df4d0f1 100644
--- a/user_guide/general/changelog.html
+++ b/user_guide/general/changelog.html
@@ -73,6 +73,7 @@
<li>Added relationship capability to the database active record class</li>
<li>Added <a href="../libraries/Zip.html">Zip Encoding Library</a> permitting files to be Zip compressed.</li>
<li>Added the ability to <a href="creating_libraries.html">extend libraries</a> and <a href="core_classes.html">extend core classes</a>, in addition to being able to replace them.</li>
+<li>Added <a href="../libraries/benchmark.html">Auto Profiler</a> to the Benchmark Class, enabling you to generate a report of execution times.</li>
<li>Added support for storing <a href="models.html">models within sub-folders</a>.</li>
<li>Added <a href="../helpers/download_helper.html">Download Helper</a>.</li>
<li>Added <a href="../database/queries.html">simple_query()</a> function to the database classes</li>
diff --git a/user_guide/libraries/benchmark.html b/user_guide/libraries/benchmark.html
index 7f3e28b..b8b0bfd 100644
--- a/user_guide/libraries/benchmark.html
+++ b/user_guide/libraries/benchmark.html
@@ -73,7 +73,20 @@
invoked, and ended by the output class right before sending the final view to the browser, enabling a very accurate
timing of the entire system execution to be shown.</p>
-<h2>Using the Benchmark</h2>
+
+<h3>Table of Contents</h3>
+
+<ul>
+<li><a href="#using">Using the Benchmark Class</a></li>
+<li><a href="#execution">Displaying Total Execution Time</a></li>
+<li><a href="#memory">Displaying Memory Consumption</a></li>
+<li><a href="#profiler">Auto Profiler</a></li>
+</ul>
+
+
+
+<a name="using"></a>
+<h2>Using the Benchmark Class</h2>
<p>The Benchmark class can be used within your <a href="../general/controllers.html">controllers</a>, <a href="../general/views.html">views</a>, or your <a href="../general/models.html">Models</a>. The process for usage is this:
@@ -111,6 +124,7 @@
echo $this->benchmark->elapsed_time('dog', 'bird');</code>
+<a name="execution"></a>
<h2>Displaying Total Execution Time</h2>
<p>If you would like to display the total elapsed time from the moment Code Igniter starts to the moment the final output
@@ -128,6 +142,7 @@
<p class="important"><strong>Note:</strong> If you want to benchmark anything within your controller
functions you must set your own start/end points.</p>
+<a name="memory"></a>
<h2>Displaying Memory Consumption</h2>
<p>If your PHP installation is configured with --enable-memory-limit, you can display the amount of memory consumed by the entire
@@ -140,6 +155,43 @@
<code>{memory_usage}</code>
+<a name="profiler"></a>
+<h2>Auto Profiler</h2>
+
+<p>When the "auto profiler" is enabled, you'll see a report printed at the bottom of your pages containing a list of
+execution times for all benchmarks you have set throughout your application. This information can help you optimize your program.</p>
+
+<p class="important"><strong>Note:</strong> Even though this is a feature of the Benchmark class you will enable it from the Output class as indicated below.</p>
+
+<p>To enable the profiler place the the following function anywhere within your Controllers:</p>
+<code>$this->output->enable_profiler(TRUE);</code>
+
+<p>When enabled you'll see a table of execution times at the bottom of your pages.</p>
+
+<p>To disable the profiler you will use:</p>
+<code>$this->output->enable_profiler(FALSE);</code>
+
+<p>Important: In order to use this feature all of your marked points must end with <kbd>_start</kbd> and <kbd>_end</kbd>, and
+each pair of points must otherwise be named identically. Example:</p>
+
+<code>
+$this->benchmark->mark('my_mark<kbd>_start</kbd>');<br />
+<br />
+// Some code happens here...<br />
+<br />
+$this->benchmark->mark('my_mark<kbd>_end</kbd>');
+<br /><br />
+
+$this->benchmark->mark('another_mark<kbd>_start</kbd>');<br />
+<br />
+// Some more code happens here...<br />
+<br />
+$this->benchmark->mark('another_mark<kbd>_end</kbd>');
+
+</code>
+
+
+
</div>
<!-- END CONTENT -->