Diff Report
Run #519c0a514701f: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c0ad3d3949: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip
Click a function name below to drill down.

Regression/Improvement summary for substr

substrRun #519c0a514701fRun #519c0ad3d3949DiffDiff%
Number of Function Calls749 759 10 1.3%
Incl. Wall Time (microsec)769 815 46 6.0%
Incl. Wall Time (microsec) per call 1 1 0 4.6%
Excl. Wall Time (microsec)769 815 46 6.0%
Incl. CPU (microsecs)1,448 1,472 24 1.7%
Incl. CPU (microsecs) per call 2 2 0 0.3%
Excl. CPU (microsec)1,448 1,472 24 1.7%
Incl. MemUse (bytes)42,056 42,772 716 1.7%
Incl. MemUse (bytes) per call 56 56 0 0.4%
Excl. MemUse (bytes)42,056 42,772 716 1.7%
Incl. PeakMemUse (bytes)15,372 15,844 472 3.1%
Incl. PeakMemUse (bytes) per call 21 21 0 1.7%
Excl. PeakMemUse (bytes)15,372 15,844 472 3.1%

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
substr10 100.0% 46 2.5% 24 0.7% 716 0.3% 472 0.2%
Exclusive Metrics Diff for Current Function46 100.0% 24 100.0% 716 100.0% 472 100.0%
Parent functions
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 44 95.7% 47 195.8% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename4 40.0% 4 8.7% 7 29.2% 548 76.5% 472 100.0%
Symfony\Component\ClassLoader\ClassLoader::findFile6 60.0% -2 -4.3% -30 -125.0% 168 23.5% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 1 2.2% -1 -4.2% 0 0.0% 0 0.0%
devel_silent0 0.0% -1 -2.2% 0 0.0% 0 0.0% 0 0.0%
Drupal\views\Plugin\views\query\Sql::add_field0 0.0% 0 0.0% -1 -4.2% 0 0.0% 0 0.0%
url0 0.0% 0 0.0% -1 -4.2% 0 0.0% 0 0.0%
theme@10 0.0% 0 0.0% 1 4.2% 0 0.0% 0 0.0%
theme@20 0.0% 0 0.0% 3 12.5% 0 0.0% 0 0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild0 0.0% 0 0.0% 1 4.2% 0 0.0% 0 0.0%
drupal_strip_dangerous_protocols0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
editor_custom_theme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 1 4.2% 0 0.0% 0 0.0%
drupal_settings_initialize0 0.0% 0 0.0% -1 -4.2% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% -4 -16.7% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 0.0% 1 4.2% 0 0.0% 0 0.0%
edit_custom_theme0 0.0% 0 0.0% 1 4.2% 0 0.0% 0 0.0%
contextual_custom_theme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%