Diff Report
Run #534ad9c94e95b: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #534ad8dec7444: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for substr

substrRun #534ad9c94e95bRun #534ad8dec7444DiffDiff%
Number of Function Calls350 344 -6 -1.7%
Incl. Wall Time (microsec)370 356 -14 -3.8%
Incl. Wall Time (microsec) per call 1 1 -0 -2.1%
Excl. Wall Time (microsec)370 356 -14 -3.8%
Incl. CPU (microsecs)667 667 0 0.0%
Incl. CPU (microsecs) per call 2 2 0 1.7%
Excl. CPU (microsec)667 667 0 0.0%
Incl. MemUse (bytes)20,776 20,500 -276 -1.3%
Incl. MemUse (bytes) per call 59 60 0 0.4%
Excl. MemUse (bytes)20,776 20,500 -276 -1.3%
Incl. PeakMemUse (bytes)9,084 9,004 -80 -0.9%
Incl. PeakMemUse (bytes) per call 26 26 0 0.8%
Excl. PeakMemUse (bytes)9,084 9,004 -80 -0.9%

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-6 -100.0% -14 -0.8% 0 0.0% -276 -1.2% -80 -0.3%
Exclusive Metrics Diff for Current Function-14 -100.0% 0 N/A% -276 -100.0% -80 -100.0%
Parent functions
Drupal\Component\PhpStorage\MTimeProtectedFastFileStorage::getContainingDirectoryFullPath-2 -33.3% -8 -57.1% -8 N/A% -96 -34.8% -80 -100.0%
Twig_Environment::getCacheFilename-4 -66.7% -4 -28.6% -8 N/A% -180 -65.2% 0 0.0%
Drupal\Core\Entity\Query\Sql\Tables::addField0 0.0% -4 -28.6% -9 N/A% 0 0.0% 0 0.0%
Composer\Autoload\ClassLoader::findFileWithExtension0 0.0% 2 14.3% 2 N/A% 0 0.0% 0 0.0%
devel_silent0 0.0% 1 7.1% 2 N/A% 0 0.0% 0 0.0%
_theme@10 0.0% 1 7.1% -3 N/A% 0 0.0% 0 0.0%
Drupal\Core\Config\Entity\Query\Query::loadRecords0 0.0% -1 -7.1% 4 N/A% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% -1 -7.1% 1 N/A% 0 0.0% 0 0.0%
_theme@20 0.0% 1 7.1% 5 N/A% 0 0.0% 0 0.0%
Drupal\views\Plugin\views\query\Sql::addField0 0.0% -1 -7.1% 0 N/A% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::getPort0 0.0% -1 -7.1% -3 N/A% 0 0.0% 0 0.0%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 1 7.1% 5 N/A% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 1 N/A% 0 0.0% 0 0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate0 0.0% 0 0.0% 7 N/A% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% 1 N/A% 0 0.0% 0 0.0%
Drupal\system\Controller\SystemController::setLinkActiveClass0 0.0% 0 0.0% 1 N/A% 0 0.0% 0 0.0%
_drupal_request_initialize0 0.0% 0 0.0% -1 N/A% 0 0.0% 0 0.0%
Drupal\Core\Entity\ContentEntityDatabaseStorage::mapFromStorageRecords0 0.0% 0 0.0% 3 N/A% 0 0.0% 0 0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces0 0.0% 0 0.0% -1 N/A% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% 1 N/A% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 0.0% 1 N/A% 0 0.0% 0 0.0%
Drupal\Core\Routing\UrlGenerator::generateFromPath0 0.0% 0 0.0% 3 N/A% 0 0.0% 0 0.0%
Drupal\Component\Utility\UrlHelper::stripDangerousProtocols0 0.0% 0 0.0% -3 N/A% 0 0.0% 0 0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider0 0.0% 0 0.0% 0 N/A% 0 0.0% 0 0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% 0 0.0% -1 N/A% 0 0.0% 0 0.0%