Diff Report
Run #519ff7de62889: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519ff693b4ca2: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for substr

substrRun #519ff7de62889Run #519ff693b4ca2DiffDiff%
Number of Function Calls737 729 -8 -1.1%
Incl. Wall Time (microsec)754 751 -3 -0.4%
Incl. Wall Time (microsec) per call 1 1 0 0.7%
Excl. Wall Time (microsec)754 751 -3 -0.4%
Incl. CPU (microsecs)1,499 1,490 -9 -0.6%
Incl. CPU (microsecs) per call 2 2 0 0.5%
Excl. CPU (microsec)1,499 1,490 -9 -0.6%
Incl. MemUse (bytes)65,160 64,824 -336 -0.5%
Incl. MemUse (bytes) per call 88 89 1 0.6%
Excl. MemUse (bytes)65,160 64,824 -336 -0.5%
Incl. PeakMemUse (bytes)39,576 39,576 0 0.0%
Incl. PeakMemUse (bytes) per call 54 54 1 1.1%
Excl. PeakMemUse (bytes)39,576 39,576 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-8 -100.0% -3 -0.3% -9 -0.8% -336 -0.5% 0 0.0%
Exclusive Metrics Diff for Current Function-3 -100.0% -9 -100.0% -336 -100.0% 0 N/A%
Parent functions
Twig_Environment::getCacheFilename-8 -100.0% -8 -266.7% -27 -300.0% -336 -100.0% 0 N/A%
Symfony\Component\ClassLoader\ClassLoader::findFile0 0.0% 5 166.7% 24 266.7% 0 0.0% 0 N/A%
drupal_strip_dangerous_protocols0 0.0% 1 33.3% 2 22.2% 0 0.0% 0 N/A%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild0 0.0% -1 -33.3% 0 0.0% 0 0.0% 0 N/A%
theme@10 0.0% 0 0.0% -1 -11.1% 0 0.0% 0 N/A%
theme@30 0.0% 0 0.0% -1 -11.1% 0 0.0% 0 N/A%
theme@50 0.0% 0 0.0% 2 22.2% 0 0.0% 0 N/A%
theme@20 0.0% 0 0.0% -1 -11.1% 0 0.0% 0 N/A%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 0 0.0% -2 -22.2% 0 0.0% 0 N/A%
theme@40 0.0% 0 0.0% -1 -11.1% 0 0.0% 0 N/A%
editor_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% -1 -11.1% 0 0.0% 0 N/A%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 0 0.0% -3 -33.3% 0 0.0% 0 N/A%
drupal_settings_initialize0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 N/A%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 N/A%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 0.0% -1 -11.1% 0 0.0% 0 N/A%
edit_custom_theme0 0.0% 0 0.0% 1 11.1% 0 0.0% 0 N/A%
contextual_custom_theme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 N/A%
request_path0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 N/A%