Diff Report
Run #51b89dd280f98: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51b89eaf4e36e: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for substr

substrRun #51b89dd280f98Run #51b89eaf4e36eDiffDiff%
Number of Function Calls2,091 2,091 0 0.0%
Incl. Wall Time (microsec)2,470 2,579 109 4.4%
Incl. Wall Time (microsec) per call 1 1 0 4.4%
Excl. Wall Time (microsec)2,470 2,579 109 4.4%
Incl. CPU (microsecs)4,462 4,564 102 2.3%
Incl. CPU (microsecs) per call 2 2 0 2.3%
Excl. CPU (microsec)4,462 4,564 102 2.3%
Incl. MemUse (bytes)109,488 109,488 0 0.0%
Incl. MemUse (bytes) per call 52 52 0 0.0%
Excl. MemUse (bytes)109,488 109,488 0 0.0%
Incl. PeakMemUse (bytes)17,632 17,632 0 0.0%
Incl. PeakMemUse (bytes) per call 8 8 0 0.0%
Excl. PeakMemUse (bytes)17,632 17,632 0 0.0%

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
substr0 N/A% 109 15.5% 102 4.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function109 100.0% 102 100.0% 0 N/A% 0 N/A%
Parent functions
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 N/A% 74 67.9% 50 49.0% 0 N/A% 0 N/A%
Symfony\Component\ClassLoader\ClassLoader::findFile0 N/A% 33 30.3% -17 -16.7% 0 N/A% 0 N/A%
Symfony\Component\Routing\RouteCompiler::compilePattern0 N/A% 6 5.5% 1 1.0% 0 N/A% 0 N/A%
theme@30 N/A% -3 -2.8% 22 21.6% 0 N/A% 0 N/A%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 N/A% -1 -0.9% 11 10.8% 0 N/A% 0 N/A%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 N/A% -1 -0.9% 18 17.6% 0 N/A% 0 N/A%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild0 N/A% 1 0.9% 1 1.0% 0 N/A% 0 N/A%
Drupal\Component\Utility\UrlValidator::stripDangerousProtocols0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%
Twig_Environment::getCacheFilename0 N/A% 0 0.0% -6 -5.9% 0 N/A% 0 N/A%
theme@10 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%
theme@20 N/A% 0 0.0% 7 6.9% 0 N/A% 0 N/A%
devel_silent0 N/A% 0 0.0% -1 -1.0% 0 N/A% 0 N/A%
drupal_settings_initialize0 N/A% 0 0.0% -1 -1.0% 0 N/A% 0 N/A%
Drupal\Component\Utility\Crypt::randomBytes0 N/A% 0 0.0% 5 4.9% 0 N/A% 0 N/A%
Drupal\Component\Uuid\Php::generate0 N/A% 0 0.0% 9 8.8% 0 N/A% 0 N/A%
request_path0 N/A% 0 0.0% 2 2.0% 0 N/A% 0 N/A%
Drupal\field_sql_storage\Entity\Tables::addField0 N/A% 0 0.0% 1 1.0% 0 N/A% 0 N/A%