Diff Report
Run #52d4b590e6e18: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d4b60c154f6: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for substr

substrRun #52d4b590e6e18Run #52d4b60c154f6DiffDiff%
Number of Function Calls1,161 1,153 -8 -0.7%
Incl. Wall Time (microsec)14 9 -5 -35.7%
Incl. Wall Time (microsec) per call 0 0 -0 -35.3%
Excl. Wall Time (microsec)14 9 -5 -35.7%
Incl. CPU (microsecs)1,175 1,154 -21 -1.8%
Incl. CPU (microsecs) per call 1 1 -0 -1.1%
Excl. CPU (microsec)1,175 1,154 -21 -1.8%
Incl. MemUse (bytes)65,448 65,112 -336 -0.5%
Incl. MemUse (bytes) per call 56 56 0 0.2%
Excl. MemUse (bytes)65,448 65,112 -336 -0.5%
Incl. PeakMemUse (bytes)15,952 15,912 -40 -0.3%
Incl. PeakMemUse (bytes) per call 14 14 0 0.4%
Excl. PeakMemUse (bytes)15,952 15,912 -40 -0.3%

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-8 -100.0% -5 -0.2% -21 -0.9% -336 -0.3% -40 -0.0%
Exclusive Metrics Diff for Current Function-5 -100.0% -21 -100.0% -336 -100.0% -40 -100.0%
Parent functions
Drupal\Core\Config\Entity\Query\Query::execute0 0.0% -5 -100.0% -6 -28.6% 0 0.0% 0 0.0%
Composer\Autoload\ClassLoader::findFile0 0.0% 1 20.0% -14 -66.7% 0 0.0% -40 -100.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% -1 -20.0% 2 9.5% 0 0.0% 0 0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
theme@10 0.0% 0 0.0% 3 14.3% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename-8 -100.0% 0 0.0% -12 -57.1% -336 -100.0% 0 0.0%
Drupal\Core\ParamConverter\EntityConverter::convert0 0.0% 0 0.0% -2 -9.5% 0 0.0% 0 0.0%
Drupal\Component\Utility\Url::stripDangerousProtocols0 0.0% 0 0.0% -2 -9.5% 0 0.0% 0 0.0%
theme@20 0.0% 0 0.0% 1 4.8% 0 0.0% 0 0.0%
Drupal\Core\Entity\FieldableDatabaseStorageController::mapFromStorageRecords0 0.0% 0 0.0% 2 9.5% 0 0.0% 0 0.0%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% 2 9.5% 0 0.0% 0 0.0%
drupal_settings_initialize0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider0 0.0% 0 0.0% 1 4.8% 0 0.0% 0 0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% 0 0.0% 2 9.5% 0 0.0% 0 0.0%
Composer\Autoload\ClassLoader::set0 0.0% 0 0.0% -1 -4.8% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 0 0.0% 5 23.8% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% -2 -9.5% 0 0.0% 0 0.0%