Diff Report
Run #523bd1075886b: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #523bd0c5929e9: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for substr

substrRun #523bd1075886bRun #523bd0c5929e9DiffDiff%
Number of Function Calls1,074 1,074 0 0.0%
Incl. Wall Time (microsec)1,502 1,510 8 0.5%
Incl. Wall Time (microsec) per call 1 1 0 0.5%
Excl. Wall Time (microsec)1,502 1,510 8 0.5%
Incl. CPU (microsecs)2,376 2,372 -4 -0.2%
Incl. CPU (microsecs) per call 2 2 -0 -0.2%
Excl. CPU (microsec)2,376 2,372 -4 -0.2%
Incl. MemUse (bytes)66,952 66,952 0 0.0%
Incl. MemUse (bytes) per call 62 62 0 0.0%
Excl. MemUse (bytes)66,952 66,952 0 0.0%
Incl. PeakMemUse (bytes)22,112 22,112 0 0.0%
Incl. PeakMemUse (bytes) per call 21 21 0 0.0%
Excl. PeakMemUse (bytes)22,112 22,112 0 0.0%

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
substr0 N/A% 8 0.5% -4 -0.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function8 100.0% -4 -100.0% 0 N/A% 0 N/A%
Parent functions
Composer\Autoload\ClassLoader::findFile0 N/A% 9 112.5% 8 200.0% 0 N/A% 0 N/A%
Composer\Autoload\ClassLoader::set0 N/A% -3 -37.5% -5 -125.0% 0 N/A% 0 N/A%
Symfony\Component\Routing\RouteCompiler::compilePattern0 N/A% 3 37.5% -2 -50.0% 0 N/A% 0 N/A%
Drupal\Core\Authentication\AuthenticationManager::addProvider0 N/A% 2 25.0% 1 25.0% 0 N/A% 0 N/A%
theme@30 N/A% -1 -12.5% 0 0.0% 0 N/A% 0 N/A%
theme@20 N/A% -1 -12.5% -1 -25.0% 0 N/A% 0 N/A%
drupal_settings_initialize0 N/A% -1 -12.5% 0 0.0% 0 N/A% 0 N/A%
theme@10 N/A% 0 0.0% 1 25.0% 0 N/A% 0 N/A%
Drupal\Core\Entity\Query\QueryBase::getNamespace0 N/A% 0 0.0% 2 50.0% 0 N/A% 0 N/A%
Drupal\Core\Entity\Query\Sql\Tables::addField0 N/A% 0 0.0% -1 -25.0% 0 N/A% 0 N/A%
Drupal\Component\Utility\Url::stripDangerousProtocols0 N/A% 0 0.0% -2 -50.0% 0 N/A% 0 N/A%
Twig_Environment::getCacheFilename0 N/A% 0 0.0% 3 75.0% 0 N/A% 0 N/A%
devel_silent0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%
Drupal\Component\Uuid\Php::generate0 N/A% 0 0.0% -3 -75.0% 0 N/A% 0 N/A%
Drupal\Component\Utility\Crypt::randomBytes0 N/A% 0 0.0% 1 25.0% 0 N/A% 0 N/A%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 N/A% 0 0.0% -1 -25.0% 0 N/A% 0 N/A%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 N/A% 0 0.0% -3 -75.0% 0 N/A% 0 N/A%
request_path0 N/A% 0 0.0% 1 25.0% 0 N/A% 0 N/A%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate0 N/A% 0 0.0% -3 -75.0% 0 N/A% 0 N/A%