Diff Report
Run #538e3b37c1a66: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #538e3ac0de109: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for substr

substrRun #538e3b37c1a66Run #538e3ac0de109DiffDiff%
Number of Function Calls1,271 1,259 -12 -0.9%
Incl. Wall Time (microsec)57 60 3 5.3%
Incl. Wall Time (microsec) per call 0 0 0 6.3%
Excl. Wall Time (microsec)57 60 3 5.3%
Incl. CPU (microsecs)1,382 1,396 14 1.0%
Incl. CPU (microsecs) per call 1 1 0 2.0%
Excl. CPU (microsec)1,382 1,396 14 1.0%
Incl. MemUse (bytes)83,344 82,664 -680 -0.8%
Incl. MemUse (bytes) per call 66 66 0 0.1%
Excl. MemUse (bytes)83,344 82,664 -680 -0.8%
Incl. PeakMemUse (bytes)13,616 13,632 16 0.1%
Incl. PeakMemUse (bytes) per call 11 11 0 1.1%
Excl. PeakMemUse (bytes)13,616 13,632 16 0.1%

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-12 -100.0% 3 0.1% 14 0.4% -680 -0.6% 16 0.0%
Exclusive Metrics Diff for Current Function3 100.0% 14 100.0% -680 -100.0% 16 100.0%
Parent functions
Composer\Autoload\ClassLoader::findFile0 0.0% 7 233.3% 45 321.4% 24 3.5% 56 350.0%
Drupal\Component\PhpStorage\MTimeProtectedFastFileStorage::getContainingDirectoryFullPath-4 -33.3% -2 -66.7% -7 -50.0% -240 -35.3% 0 0.0%
Drupal\Core\ParamConverter\EntityConverter::convert0 0.0% -1 -33.3% -5 -35.7% 0 0.0% 0 0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces0 0.0% 1 33.3% -1 -7.1% 0 0.0% 0 0.0%
_theme@20 0.0% 1 33.3% -4 -28.6% 0 0.0% 0 0.0%
Drupal\Core\Session\SessionManager::getInsecureName0 0.0% -1 -33.3% -2 -14.3% 0 0.0% 0 0.0%
twig_render_template@20 0.0% -1 -33.3% 1 7.1% 0 0.0% 0 0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate0 0.0% -1 -33.3% -11 -78.6% 0 0.0% 0 0.0%
twig_render_template0 0.0% 0 0.0% -1 -7.1% 0 0.0% 0 0.0%
_theme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
_drupal_request_initialize0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% -3 -21.4% 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 -7.1% 0 0.0% 0 0.0%
Drupal\Component\Utility\UrlHelper::stripDangerousProtocols0 0.0% 0 0.0% -1 -7.1% 0 0.0% 0 0.0%
Drupal\system\Controller\SystemController::setLinkActiveClass0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
twig_render_template@10 0.0% 0 0.0% 1 7.1% 0 0.0% 0 0.0%
_theme@10 0.0% 0 0.0% -1 -7.1% 0 0.0% 0 0.0%
Drupal\image\Entity\ImageStyle::getPathToken0 0.0% 0 0.0% -3 -21.4% 0 0.0% 0 0.0%
file_uri_scheme0 0.0% 0 0.0% 16 114.3% 0 0.0% 0 0.0%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 0 0.0% -2 -14.3% 0 0.0% -40 -250.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider0 0.0% 0 0.0% 2 14.3% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% 0 0.0% -7 -50.0% 0 0.0% 0 0.0%
Drupal\Core\Config\Entity\Query\Query::loadRecords0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename-8 -66.7% 0 0.0% -4 -28.6% -464 -68.2% 0 0.0%
Drupal\Component\Utility\Xss::split0 0.0% 0 0.0% -3 -21.4% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 5 35.7% 0 0.0% 0 0.0%
Drupal\Core\Routing\UrlGenerator::processPath0 0.0% 0 0.0% -2 -14.3% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 0.0% 2 14.3% 0 0.0% 0 0.0%