Diff Report
Run #51b89ec98250c: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51b89dd280f98: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for substr

substrRun #51b89ec98250cRun #51b89dd280f98DiffDiff%
Number of Function Calls2,095 2,091 -4 -0.2%
Incl. Wall Time (microsec)2,537 2,470 -67 -2.6%
Incl. Wall Time (microsec) per call 1 1 -0 -2.5%
Excl. Wall Time (microsec)2,537 2,470 -67 -2.6%
Incl. CPU (microsecs)4,576 4,462 -114 -2.5%
Incl. CPU (microsecs) per call 2 2 -0 -2.3%
Excl. CPU (microsec)4,576 4,462 -114 -2.5%
Incl. MemUse (bytes)109,672 109,488 -184 -0.2%
Incl. MemUse (bytes) per call 52 52 0 0.0%
Excl. MemUse (bytes)109,672 109,488 -184 -0.2%
Incl. PeakMemUse (bytes)17,520 17,632 112 0.6%
Incl. PeakMemUse (bytes) per call 8 8 0 0.8%
Excl. PeakMemUse (bytes)17,520 17,632 112 0.6%

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% -67 -0.5% -114 -0.8% -184 -0.3% 112 0.2%
Exclusive Metrics Diff for Current Function-67 -100.0% -114 -100.0% -184 -100.0% 112 100.0%
Parent functions
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% -30 -44.8% -25 -21.9% 0 0.0% 0 0.0%
Symfony\Component\ClassLoader\ClassLoader::findFile0 0.0% -27 -40.3% -17 -14.9% 0 0.0% 0 0.0%
Drupal\field_sql_storage\Entity\Tables::addField0 0.0% 6 9.0% -2 -1.8% 0 0.0% 0 0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% -5 -7.5% -7 -6.1% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename-4 -100.0% -5 -7.5% -4 -3.5% -168 -91.3% 0 0.0%
theme@30 0.0% -4 -6.0% -12 -10.5% 0 0.0% 0 0.0%
theme@10 0.0% -1 -1.5% 2 1.8% 0 0.0% 112 100.0%
theme@20 0.0% -1 -1.5% -7 -6.1% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 1 1.5% -5 -4.4% 0 0.0% 0 0.0%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% -1 -1.5% -6 -5.3% 0 0.0% 0 0.0%
Drupal\Component\Utility\UrlValidator::stripDangerousProtocols0 0.0% 0 0.0% 1 0.9% -16 -8.7% 0 0.0%
devel_silent0 0.0% 0 0.0% 1 0.9% 0 0.0% 0 0.0%
drupal_settings_initialize0 0.0% 0 0.0% -1 -0.9% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% -6 -5.3% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% -24 -21.1% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild0 0.0% 0 0.0% -2 -1.8% 0 0.0% 0 0.0%