Diff Report
Run #52c2694eecde3: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #52c2677cc22b0: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for substr

substrRun #52c2694eecde3Run #52c2677cc22b0DiffDiff%
Number of Function Calls6,228 6,224 -4 -0.1%
Incl. Wall Time (microsec)4,443 4,792 349 7.9%
Incl. Wall Time (microsec) per call 1 1 0 7.9%
Excl. Wall Time (microsec)4,443 4,792 349 7.9%
Incl. CPU (microsecs)8,208 8,145 -63 -0.8%
Incl. CPU (microsecs) per call 1 1 -0 -0.7%
Excl. CPU (microsec)8,208 8,145 -63 -0.8%
Incl. MemUse (bytes)202,232 202,088 -144 -0.1%
Incl. MemUse (bytes) per call 32 32 -0 -0.0%
Excl. MemUse (bytes)202,232 202,088 -144 -0.1%
Incl. PeakMemUse (bytes)6,128 6,600 472 7.7%
Incl. PeakMemUse (bytes) per call 1 1 0 7.8%
Excl. PeakMemUse (bytes)6,128 6,600 472 7.7%

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% 349 0.8% -63 -0.2% -144 -0.2% 472 0.3%
Exclusive Metrics Diff for Current Function349 100.0% -63 -100.0% -144 -100.0% 472 100.0%
Parent functions
Symfony\Component\Yaml\Inline::parse0 0.0% 321 92.0% -87 -138.1% 0 0.0% 0 0.0%
Symfony\Component\Yaml\Inline::parseQuotedScalar0 0.0% 41 11.7% 40 63.5% 0 0.0% 0 0.0%
Symfony\Component\Yaml\Inline::parseScalar0 0.0% -39 -11.2% -67 -106.3% 0 0.0% 0 0.0%
Composer\Autoload\ClassLoader::set0 0.0% 30 8.6% 4 6.3% 0 0.0% 0 0.0%
Composer\Autoload\ClassLoader::findFile0 0.0% 13 3.7% 34 54.0% 48 33.3% 88 18.6%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% -5 -1.4% 1 1.6% 0 0.0% 384 81.4%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% -5 -1.4% -1 -1.6% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% -4 -1.1% -4 -6.3% 0 0.0% 0 0.0%
Symfony\Component\Yaml\Parser::getNextEmbedBlock0 0.0% -3 -0.9% -6 -9.5% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename-4 -100.0% -2 -0.6% -2 -3.2% -168 -116.7% 0 0.0%
theme@30 0.0% 2 0.6% 33 52.4% 0 0.0% 0 0.0%
Drupal\Component\Utility\Xss::split0 0.0% -1 -0.3% -13 -20.6% 0 0.0% 0 0.0%
Symfony\Component\Routing\Generator\UrlGenerator::doGenerate0 0.0% 1 0.3% -2 -3.2% 0 0.0% 0 0.0%
request_path0 0.0% 1 0.3% 1 1.6% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% -1 -0.3% 2 3.2% 0 0.0% 0 0.0%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 0 0.0% 2 3.2% 0 0.0% 0 0.0%
Drupal\Component\Utility\Xss::attributes0 0.0% 0 0.0% 4 6.3% 0 0.0% 0 0.0%
theme@20 0.0% 0 0.0% 1 1.6% 0 0.0% 0 0.0%
Drupal\Component\Utility\Url::stripDangerousProtocols0 0.0% 0 0.0% 1 1.6% -24 -16.7% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 4 6.3% 0 0.0% 0 0.0%
theme@10 0.0% 0 0.0% -4 -6.3% 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%
Drupal\Core\Config\Entity\Query\Query::execute0 0.0% 0 0.0% -3 -4.8% 0 0.0% 0 0.0%
Drupal\Core\Authentication\AuthenticationManager::addProvider0 0.0% 0 0.0% -1 -1.6% 0 0.0% 0 0.0%
drupal_settings_initialize0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%