Bench_GruberURL
extends Codebench
extends Kohana_Codebench
Constants
- None
Properties
Properties
-
public $description
-
Default value:
string(82) "Optimization for http://daringfireball.net/2009/11/liberal_regex_for_matching_urls" -
public array $grades
-
Grade letters with their maximum scores. Used to color the graphs.
-
Default value:
array(6) ( 125 => string(1) "A" 150 => string(1) "B" 200 => string(1) "C" 300 => string(1) "D" 500 => string(1) "E" "default" => string(1) "F" )
-
public $loops
-
Default value:
integer 10000
-
public $subjects
-
Default value:
array(21) ( 0 => string(24) "http://foo.com/blah_blah" 1 => string(25) "http://foo.com/blah_blah/" 2 => string(41) "(Something like http://foo.com/blah_blah)" 3 => string(36) "http://foo.com/blah_blah_(wikipedia)" 4 => string(53) "(Something like http://foo.com/blah_blah_(wikipedia))" 5 => string(25) "http://foo.com/blah_blah." 6 => string(26) "http://foo.com/blah_blah/." 7 => string(26) "<http://foo.com/blah_blah>" 8 => string(27) "<http://foo.com/blah_blah/>" 9 => string(25) "http://foo.com/blah_blah," 10 => string(38) "http://www.example.com/wpstyle/?p=364." 11 => string(19) "http://✪df.ws/e7l" 12 => string(11) "rdar://1234" 13 => string(10) "rdar:/1234" 14 => string(53) "x-yojimbo-item://6303E4C1-xxxx-45A6-AB9D-3A908F59AE0E" 15 => string(70) "message://%[email protected]%3e" 16 => string(17) "http://➡.ws/䨹" 17 => string(14) "www.➡.ws/䨹" 18 => string(29) "<tag>http://example.com</tag>" 19 => string(28) "Just a www.example.com link." 20 => string(119) "httpppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp" )
Methods
public bench_daringfireball() (defined in Bench_GruberURL)
Source Code
public function bench_daringfireball($subject)
{
// Original regex by John Gruber
preg_match('~\b(([\w-]+://?|www[.])[^\s()<>]+(?:\([\w\d]+\)|([^[:punct:]\s]|/)))~', $subject, $matches);
return (empty($matches)) ? FALSE : $matches[0];
}
public bench_daringfireball_v2() (defined in Bench_GruberURL)
Source Code
public function bench_daringfireball_v2($subject)
{
// Removed outer capturing parentheses, made another pair non-capturing
preg_match('~\b(?:[\w-]+://?|www[.])[^\s()<>]+(?:\([\w\d]+\)|(?:[^[:punct:]\s]|/))~', $subject, $matches);
return (empty($matches)) ? FALSE : $matches[0];
}
public bench_daringfireball_v3() (defined in Bench_GruberURL)
Source Code
public function bench_daringfireball_v3($subject)
{
// Made quantifiers possessive where possible
preg_match('~\b(?:[\w-]++://?+|www[.])[^\s()<>]+(?:\([\w\d]++\)|(?:[^[:punct:]\s]|/))~', $subject, $matches);
return (empty($matches)) ? FALSE : $matches[0];
}
public __construct() (defined in Kohana_Codebench)
Constructor.
Return Values
- void
Source Code
public function __construct()
{
// Set the maximum execution time
set_time_limit(Kohana::$config->load('codebench')->max_execution_time);
}
public run() (defined in Kohana_Codebench)
Runs Codebench on the extending class.
Return Values
- array - Benchmark output
Source Code
public function run()
{
// Array of all methods to loop over
$methods = array_filter(get_class_methods($this), [$this, '_method_filter']);
// Make sure the benchmark runs at least once,
// also if no subject data has been provided.
if (empty($this->subjects))
{
$this->subjects = ['NULL' => NULL];
}
// Initialize benchmark output
$codebench = [
'class' => get_class($this),
'description' => $this->description,
'loops' => [
'base' => (int) $this->loops,
'total' => (int) $this->loops * count($this->subjects) * count($methods),
],
'subjects' => $this->subjects,
'benchmarks' => [],
];
// Benchmark each method
foreach ($methods as $method)
{
// Initialize benchmark output for this method
$codebench['benchmarks'][$method] = ['time' => 0, 'memory' => 0];
// Using Reflection because simply calling $this->$method($subject) in the loop below
// results in buggy benchmark times correlating to the length of the method name.
$reflection = new ReflectionMethod(get_class($this), $method);
// Benchmark each subject on each method
foreach ($this->subjects as $subject_key => $subject)
{
// Prerun each method/subject combo before the actual benchmark loop.
// This way relatively expensive initial processes won't be benchmarked, e.g. autoloading.
// At the same time we capture the return here so we don't have to do that in the loop anymore.
$return = $reflection->invoke($this, $subject);
// Start the timer for one subject
$token = Profiler::start('codebench', $method.$subject_key);
// The heavy work
for ($i = 0; $i < $this->loops; ++$i)
{
$reflection->invoke($this, $subject);
}
// Stop and read the timer
$benchmark = Profiler::total($token);
// Benchmark output specific to the current method and subject
$codebench['benchmarks'][$method]['subjects'][$subject_key] = [
'return' => $return,
'time' => $benchmark[0],
'memory' => $benchmark[1],
];
// Update method totals
$codebench['benchmarks'][$method]['time'] += $benchmark[0];
$codebench['benchmarks'][$method]['memory'] += $benchmark[1];
}
}
// Initialize the fastest and slowest benchmarks for both methods and subjects, time and memory,
// these values will be overwritten using min() and max() later on.
// The 999999999 values look like a hack, I know, but they work,
// unless your method runs for more than 31 years or consumes over 1GB of memory.
$fastest_method = $fastest_subject = ['time' => 999999999, 'memory' => 999999999];
$slowest_method = $slowest_subject = ['time' => 0, 'memory' => 0];
// Find the fastest and slowest benchmarks, needed for the percentage calculations
foreach ($methods as $method)
{
// Update the fastest and slowest method benchmarks
$fastest_method['time'] = min($fastest_method['time'], $codebench['benchmarks'][$method]['time']);
$fastest_method['memory'] = min($fastest_method['memory'], $codebench['benchmarks'][$method]['memory']);
$slowest_method['time'] = max($slowest_method['time'], $codebench['benchmarks'][$method]['time']);
$slowest_method['memory'] = max($slowest_method['memory'], $codebench['benchmarks'][$method]['memory']);
foreach ($this->subjects as $subject_key => $subject)
{
// Update the fastest and slowest subject benchmarks
$fastest_subject['time'] = min($fastest_subject['time'], $codebench['benchmarks'][$method]['subjects'][$subject_key]['time']);
$fastest_subject['memory'] = min($fastest_subject['memory'], $codebench['benchmarks'][$method]['subjects'][$subject_key]['memory']);
$slowest_subject['time'] = max($slowest_subject['time'], $codebench['benchmarks'][$method]['subjects'][$subject_key]['time']);
$slowest_subject['memory'] = max($slowest_subject['memory'], $codebench['benchmarks'][$method]['subjects'][$subject_key]['memory']);
}
}
// Percentage calculations for methods
foreach ($codebench['benchmarks'] as & $method)
{
// Calculate percentage difference relative to fastest and slowest methods
$method['percent']['fastest']['time'] = (empty($fastest_method['time'])) ? 0 : ($method['time'] / $fastest_method['time'] * 100);
$method['percent']['fastest']['memory'] = (empty($fastest_method['memory'])) ? 0 : ($method['memory'] / $fastest_method['memory'] * 100);
$method['percent']['slowest']['time'] = (empty($slowest_method['time'])) ? 0 : ($method['time'] / $slowest_method['time'] * 100);
$method['percent']['slowest']['memory'] = (empty($slowest_method['memory'])) ? 0 : ($method['memory'] / $slowest_method['memory'] * 100);
// Assign a grade for time and memory to each method
$method['grade']['time'] = $this->_grade($method['percent']['fastest']['time']);
$method['grade']['memory'] = $this->_grade($method['percent']['fastest']['memory']);
// Percentage calculations for subjects
foreach ($method['subjects'] as & $subject)
{
// Calculate percentage difference relative to fastest and slowest subjects for this method
$subject['percent']['fastest']['time'] = (empty($fastest_subject['time'])) ? 0 : ($subject['time'] / $fastest_subject['time'] * 100);
$subject['percent']['fastest']['memory'] = (empty($fastest_subject['memory'])) ? 0 : ($subject['memory'] / $fastest_subject['memory'] * 100);
$subject['percent']['slowest']['time'] = (empty($slowest_subject['time'])) ? 0 : ($subject['time'] / $slowest_subject['time'] * 100);
$subject['percent']['slowest']['memory'] = (empty($slowest_subject['memory'])) ? 0 : ($subject['memory'] / $slowest_subject['memory'] * 100);
// Assign a grade letter for time and memory to each subject
$subject['grade']['time'] = $this->_grade($subject['percent']['fastest']['time']);
$subject['grade']['memory'] = $this->_grade($subject['percent']['fastest']['memory']);
}
}
return $codebench;
}
protected _grade(integer|double $score ) (defined in Kohana_Codebench)
Returns the applicable grade letter for a score.
Parameters
- integer|double $score required - Score
Return Values
- string - Grade letter
Source Code
protected function _grade($score)
{
foreach ($this->grades as $max => $grade)
{
if ($max === 'default')
continue;
if ($score <= $max)
return $grade;
}
return $this->grades['default'];
}
protected _method_filter(string $method ) (defined in Kohana_Codebench)
Callback for array_filter(). Filters out all methods not to benchmark.
Parameters
- string $method required - Method name
Return Values
- boolean
Source Code
protected function _method_filter($method)
{
// Only benchmark methods with the "bench" prefix
return (substr($method, 0, 5) === 'bench');
}
