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

substrRun #51af3d98520b7Run #51af435181b2eDiffDiff%
Number of Function Calls795 799 4 0.5%
Incl. Wall Time (microsec)877 857 -20 -2.3%
Incl. Wall Time (microsec) per call 1 1 -0 -2.8%
Excl. Wall Time (microsec)877 857 -20 -2.3%
Incl. CPU (microsecs)1,634 1,590 -44 -2.7%
Incl. CPU (microsecs) per call 2 2 -0 -3.2%
Excl. CPU (microsec)1,634 1,590 -44 -2.7%
Incl. MemUse (bytes)77,176 77,344 168 0.2%
Incl. MemUse (bytes) per call 97 97 -0 -0.3%
Excl. MemUse (bytes)77,176 77,344 168 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
substr4 100.0% -20 -2.5% -44 -4.6% 168 0.2% 0 0.0%
Exclusive Metrics Diff for Current Function-20 -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%
Twig_Environment::getCacheFilename4 100.0% 4 20.0% 12 27.3% 168 100.0% 0 N/A%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% -11 -25.0% 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%
theme@20 0.0% 0 0.0% -5 -11.4% 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%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% 0 0.0% -1 -2.3% 0 0.0% 0 N/A%
Drupal\Component\Utility\Xss::split0 0.0% 1 5.0% 1 2.3% 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%
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%
contextual_custom_theme0 0.0% 0 0.0% -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%
edit_custom_theme0 0.0% 0 0.0% 0 0.0% 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%
editor_custom_theme0 0.0% 0 0.0% 0 0.0% 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%