Diff Report
Run #53920b950c201: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53920c043e98b: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for substr

substrRun #53920b950c201Run #53920c043e98bDiffDiff%
Number of Function Calls302 308 6 2.0%
Incl. Wall Time (microsec)322 308 -14 -4.3%
Incl. Wall Time (microsec) per call 1 1 -0 -6.2%
Excl. Wall Time (microsec)322 308 -14 -4.3%
Incl. CPU (microsecs)574 536 -38 -6.6%
Incl. CPU (microsecs) per call 2 2 -0 -8.4%
Excl. CPU (microsec)574 536 -38 -6.6%
Incl. MemUse (bytes)18,456 18,732 276 1.5%
Incl. MemUse (bytes) per call 61 61 -0 -0.5%
Excl. MemUse (bytes)18,456 18,732 276 1.5%
Incl. PeakMemUse (bytes)9,276 9,212 -64 -0.7%
Incl. PeakMemUse (bytes) per call 31 30 -1 -2.6%
Excl. PeakMemUse (bytes)9,276 9,212 -64 -0.7%

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


Function NameCalls DiffCalls
Diff%		Incl. Wall
Diff
(microsec)		IWall
Diff%		Incl. CPU Diff
(microsec)		ICpu
Diff%		Incl.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
substr6 100.0% -14 -3.9% -38 -20.3% 276 2.6% -64 -0.6%
Exclusive Metrics Diff for Current Function-14 -100.0% -38 -100.0% 276 100.0% -64 -100.0%
Parent functions
Twig_Environment::getCacheFilename4 66.7% 4 28.6% 1 2.6% 180 65.2% 0 0.0%
Drupal\Component\PhpStorage\MTimeProtectedFastFileStorage::getContainingDirectoryFullPath2 33.3% -7 -50.0% -7 -18.4% 96 34.8% 0 0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate0 0.0% 0 0.0% -11 -28.9% 0 0.0% 0 0.0%
Drupal\Core\Config\Entity\Query\Query::loadRecords0 0.0% 0 0.0% -3 -7.9% 0 0.0% 0 0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces0 0.0% 0 0.0% -2 -5.3% 0 0.0% 0 0.0%
Drupal\Core\Entity\Query\Sql\Tables::addField0 0.0% -9 -64.3% -13 -34.2% 0 0.0% 0 0.0%
_theme0 0.0% 0 0.0% 1 2.6% 0 0.0% 0 0.0%
Drupal\Core\ParamConverter\EntityConverter::convert0 0.0% 0 0.0% -2 -5.3% 0 0.0% 0 0.0%
file_uri_scheme0 0.0% 0 0.0% -4 -10.5% 0 0.0% 0 0.0%
Drupal\Component\Utility\UrlHelper::stripDangerousProtocols0 0.0% 0 0.0% -1 -2.6% 0 0.0% 0 0.0%
Drupal\system\Controller\SystemController::setLinkActiveClass0 0.0% 0 0.0% 1 2.6% 0 0.0% 0 0.0%
_theme@20 0.0% 0 0.0% 2 5.3% 0 0.0% 0 0.0%
_theme@10 0.0% 0 0.0% 1 2.6% 0 0.0% -64 -100.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 0 0.0% -6 -15.8% 0 0.0% 0 0.0%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 0 0.0% -1 -2.6% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% -2 -5.3% 0 0.0% 0 0.0%
_drupal_request_initialize0 0.0% 0 0.0% 1 2.6% 0 0.0% 0 0.0%
Composer\Autoload\ClassLoader::findFileWithExtension0 0.0% 0 0.0% 2 5.3% 0 0.0% 0 0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider0 0.0% 0 0.0% 1 2.6% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::getPort0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% -2 -14.3% 5 13.2% 0 0.0% 0 0.0%
Drupal\Core\Session\SessionManager::getInsecureName0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 0.0% -1 -2.6% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%