Diff Report
Run #54f28d53cc42b: XHProf Run (Namespace=drupal-perf-davidhernandez)
vs.
Run #54f283c5bb5f3: XHProf Run (Namespace=drupal-perf-davidhernandez)
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Regression/Improvement summary for substr

substrRun #54f28d53cc42bRun #54f283c5bb5f3DiffDiff%
Number of Function Calls1,126 1,120 -6 -0.5%
Incl. Wall Time (microsec)2,350 2,750 400 17.0%
Incl. Wall Time (microsec) per call 2 2 0 17.6%
Excl. Wall Time (microsec)198 403 205 103.5%
Incl. MemUse (bytes)90,584 90,200 -384 -0.4%
Incl. MemUse (bytes) per call 80 81 0 0.1%
Excl. MemUse (bytes)73,528 73,144 -384 -0.5%
Incl. PeakMemUse (bytes)89,896 88,912 -984 -1.1%
Incl. PeakMemUse (bytes) per call 80 79 -0 -0.6%
Excl. PeakMemUse (bytes)25,608 24,640 -968 -3.8%

Parent/Child Regression/Improvement report for substr [View Callgraph Diff]


Function NameCalls DiffCalls
Diff%		Incl. Wall
Diff
(microsec)		IWall
Diff%		Incl.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
substr-6 -100.0% 400 3.7% -384 -0.2% -984 -0.6%
Exclusive Metrics Diff for Current Function205 51.2% -384 -100.0% -968 -98.4%
Parent functions
devel_silent0 0.0% 197 49.2% 0 0.0% -16 -1.6%
Composer\Autoload\ClassLoader::findFileWithExtension0 0.0% 170 42.5% 24 6.2% -184 -18.7%
Drupal\Core\Database\Connection::expandArguments0 0.0% 8 2.0% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename-4 -66.7% 7 1.8% -232 -60.4% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 4 1.0% 0 0.0% 0 0.0%
Drupal\Component\PhpStorage\MTimeProtectedFastFileStorage::getContainingDirectoryFullPath-2 -33.3% 4 1.0% -120 -31.2% 0 0.0%
Drupal\Core\Routing\RouteMatch::getParameterNames0 0.0% 2 0.5% 0 0.0% 0 0.0%
Twig_Error::updateRepr0 0.0% 2 0.5% 0 0.0% 0 0.0%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 2 0.5% 0 0.0% -56 -5.7%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% -1 -0.2% 0 0.0% 0 0.0%
Drupal\system\Controller\SystemController::setLinkActiveClass0 0.0% 1 0.2% 0 0.0% 0 0.0%
Symfony\Component\Routing\Route::sanitizeRequirement0 0.0% 1 0.2% -24 -6.2% 0 0.0%
Drupal\Component\Utility\UrlHelper::parse0 0.0% 1 0.2% 0 0.0% 0 0.0%
Drupal\Component\Utility\UrlHelper::stripDangerousProtocols0 0.0% 1 0.2% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 1 0.2% 0 0.0% 0 0.0%
Drupal\Core\Theme\ThemeManager::theme@20 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces0 0.0% 0 0.0% -24 -6.2% -728 -74.0%
Drupal\Core\Config\Entity\Query\Query::loadRecords0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\Routing\UrlGenerator::processPath0 0.0% 0 0.0% -8 -2.1% 0 0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\DrupalKernel::initializeRequestGlobals0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\DrupalKernel::__construct0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\Session\SessionConfiguration::getUnprefixedName0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\views\Plugin\views\query\Sql::addField0 0.0% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 0 0.0% 0 0.0%
Child function
Drupal\Core\Url::__toString0 N/A% 195 48.8% 0 0.0% -16 -1.6%