Diff Report
Run #51af435181b2e: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51af3d98520b7: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for substr

substrRun #51af435181b2eRun #51af3d98520b7DiffDiff%
Number of Function Calls799 795 -4 -0.5%
Incl. Wall Time (microsec)857 877 20 2.3%
Incl. Wall Time (microsec) per call 1 1 0 2.8%
Excl. Wall Time (microsec)857 877 20 2.3%
Incl. CPU (microsecs)1,590 1,634 44 2.8%
Incl. CPU (microsecs) per call 2 2 0 3.3%
Excl. CPU (microsec)1,590 1,634 44 2.8%
Incl. MemUse (bytes)77,344 77,176 -168 -0.2%
Incl. MemUse (bytes) per call 97 97 0 0.3%
Excl. MemUse (bytes)77,344 77,176 -168 -0.2%
Incl. PeakMemUse (bytes)22,928 22,928 0 0.0%
Incl. PeakMemUse (bytes) per call 29 29 0 0.5%
Excl. PeakMemUse (bytes)22,928 22,928 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
substr-4 -100.0% 20 2.5% 44 4.6% -168 -0.2% 0 0.0%
Exclusive Metrics Diff for Current Function20 100.0% 44 100.0% -168 -100.0% 0 N/A%
Parent functions
Symfony\Component\ClassLoader\ClassLoader::findFile0 0.0% 16 80.0% 31 70.5% 0 0.0% 0 N/A%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 9 45.0% 10 22.7% 0 0.0% 0 N/A%
Twig_Environment::getCacheFilename-4 -100.0% -4 -20.0% -12 -27.3% -168 -100.0% 0 N/A%
Drupal\Component\Utility\Xss::split0 0.0% -1 -5.0% -1 -2.3% 0 0.0% 0 N/A%
request_path0 0.0% 1 5.0% -1 -2.3% 0 0.0% 0 N/A%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% -1 -5.0% -2 -4.5% 0 0.0% 0 N/A%
Drupal\field_sql_storage\Entity\Tables::addField0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 N/A%
theme@20 0.0% 0 0.0% 5 11.4% 0 0.0% 0 N/A%
Drupal\Component\Utility\UrlValidator::stripDangerousProtocols0 0.0% 0 0.0% 1 2.3% 0 0.0% 0 N/A%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% 0 0.0% 1 2.3% 0 0.0% 0 N/A%
edit_custom_theme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 N/A%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 11 25.0% 0 0.0% 0 N/A%
drupal_settings_initialize0 0.0% 0 0.0% 1 2.3% 0 0.0% 0 N/A%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% -1 -2.3% 0 0.0% 0 N/A%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 N/A%
contextual_custom_theme0 0.0% 0 0.0% 1 2.3% 0 0.0% 0 N/A%
editor_custom_theme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 N/A%