Diff Report
Run #5392041970f3f: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539201f8938f4: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for substr

substrRun #5392041970f3fRun #539201f8938f4DiffDiff%
Number of Function Calls406 393 -13 -3.2%
Incl. Wall Time (microsec)423 398 -25 -5.9%
Incl. Wall Time (microsec) per call 1 1 -0 -2.8%
Excl. Wall Time (microsec)423 398 -25 -5.9%
Incl. CPU (microsecs)780 733 -47 -6.0%
Incl. CPU (microsecs) per call 2 2 -0 -2.9%
Excl. CPU (microsec)780 733 -47 -6.0%
Incl. MemUse (bytes)24,004 23,028 -976 -4.1%
Incl. MemUse (bytes) per call 59 59 -1 -0.9%
Excl. MemUse (bytes)24,004 23,028 -976 -4.1%
Incl. PeakMemUse (bytes)11,688 11,264 -424 -3.6%
Incl. PeakMemUse (bytes) per call 29 29 -0 -0.4%
Excl. PeakMemUse (bytes)11,688 11,264 -424 -3.6%

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
substr-13 -100.0% -25 -1.7% -47 -1.7% -976 -1.7% -424 -0.7%
Exclusive Metrics Diff for Current Function-25 -100.0% -47 -100.0% -976 -100.0% -424 -100.0%
Parent functions
Drupal\Component\Utility\Crypt::randomBytes0 0.0% -9 -36.0% -1 -2.1% 0 0.0% 0 0.0%
_theme@10 0.0% -9 -36.0% -7 -14.9% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename-8 -61.5% -7 -28.0% -13 -27.7% -360 -36.9% 0 0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% 1 4.0% -5 -10.6% 0 0.0% 0 0.0%
_theme@3-1 -7.7% -1 -4.0% -3 -6.4% -424 -43.4% -344 -81.1%
Drupal\Core\Config\Entity\Query\Query::loadRecords0 0.0% 1 4.0% -9 -19.1% 0 0.0% 0 0.0%
Drupal\Component\PhpStorage\MTimeProtectedFastFileStorage::getContainingDirectoryFullPath-4 -30.8% -1 -4.0% -12 -25.5% -192 -19.7% -80 -18.9%
Drupal\Component\Utility\UrlHelper::stripDangerousProtocols0 0.0% 0 0.0% -1 -2.1% 0 0.0% 0 0.0%
_theme0 0.0% 0 0.0% 1 2.1% 0 0.0% 0 0.0%
Drupal\Core\Routing\UrlGenerator::generateFromPath0 0.0% 0 0.0% 1 2.1% 0 0.0% 0 0.0%
file_uri_scheme0 0.0% 0 0.0% -4 -8.5% 0 0.0% 0 0.0%
Drupal\Component\Utility\Xss::attributes0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\Entity\Query\Sql\Tables::addField0 0.0% 0 0.0% -1 -2.1% 0 0.0% 0 0.0%
Composer\Autoload\ClassLoader::findFileWithExtension0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\system\Controller\SystemController::setLinkActiveClass0 0.0% 0 0.0% 1 2.1% 0 0.0% 0 0.0%
_theme@20 0.0% 0 0.0% 3 6.4% 0 0.0% 0 0.0%
_drupal_request_initialize0 0.0% 0 0.0% 2 4.3% 0 0.0% 0 0.0%
Drupal\Component\Utility\Xss::split0 0.0% 0 0.0% 1 2.1% 0 0.0% 0 0.0%
Drupal\Core\Routing\UrlGenerator::processPath0 0.0% 0 0.0% 2 4.3% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\Session\SessionManager::getInsecureName0 0.0% 0 0.0% -1 -2.1% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 0.0% 0 0.0% 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\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 0 0.0% -2 -4.3% 0 0.0% 0 0.0%
Drupal\Core\ParamConverter\EntityConverter::convert0 0.0% 0 0.0% 2 4.3% 0 0.0% 0 0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate0 0.0% 0 0.0% -3 -6.4% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% 1 2.1% 0 0.0% 0 0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces0 0.0% 0 0.0% 1 2.1% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%