Diff Report
Run #52c96bbf45f87: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c96b69a1c07: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for substr

substrRun #52c96bbf45f87Run #52c96b69a1c07DiffDiff%
Number of Function Calls180 176 -4 -2.2%
Incl. Wall Time (microsec)8 10 2 25.0%
Incl. Wall Time (microsec) per call 0 0 0 27.8%
Excl. Wall Time (microsec)8 10 2 25.0%
Incl. CPU (microsecs)182 183 1 0.5%
Incl. CPU (microsecs) per call 1 1 0 2.8%
Excl. CPU (microsec)182 183 1 0.5%
Incl. MemUse (bytes)23,464 23,280 -184 -0.8%
Incl. MemUse (bytes) per call 130 132 2 1.5%
Excl. MemUse (bytes)23,464 23,280 -184 -0.8%
Incl. PeakMemUse (bytes)8,000 8,088 88 1.1%
Incl. PeakMemUse (bytes) per call 44 46 2 3.4%
Excl. PeakMemUse (bytes)8,000 8,088 88 1.1%

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-4 -100.0% 2 0.4% 1 0.2% -184 -0.4% 88 0.2%
Exclusive Metrics Diff for Current Function2 100.0% 1 100.0% -184 -100.0% 88 100.0%
Parent functions
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 1 50.0% 0 0.0% -16 -8.7% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 1 50.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Core\Config\Entity\Query\Query::execute0 0.0% -1 -50.0% -2 -200.0% 0 0.0% 0 0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider0 0.0% 1 50.0% 0 0.0% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename-4 -100.0% 0 0.0% 3 300.0% -168 -91.3% 88 100.0%
Drupal\Core\Database\Connection::query0 0.0% 0 0.0% 2 200.0% 0 0.0% 0 0.0%
Drupal\Component\Utility\Url::stripDangerousProtocols0 0.0% 0 0.0% 1 100.0% 0 0.0% 0 0.0%
theme@20 0.0% 0 0.0% -5 -500.0% 0 0.0% 0 0.0%
Drupal\Core\Entity\Query\QueryBase::getNamespaces0 0.0% 0 0.0% 3 300.0% 0 0.0% 0 0.0%
theme@10 0.0% 0 0.0% -3 -300.0% 0 0.0% 0 0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% 0 0.0% -5 -500.0% 0 0.0% 0 0.0%
drupal_settings_initialize0 0.0% 0 0.0% 3 300.0% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 1 100.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% 3 300.0% 0 0.0% 0 0.0%
Composer\Autoload\ClassLoader::set0 0.0% 0 0.0% -2 -200.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 0 0.0% 2 200.0% 0 0.0% 0 0.0%