Diff Report
Run #519eb880e5974: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eb7a1537f7: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for substr

substrRun #519eb880e5974Run #519eb7a1537f7DiffDiff%
Number of Function Calls1,123 1,088 -35 -3.1%
Incl. Wall Time (microsec)1,173 1,146 -27 -2.3%
Incl. Wall Time (microsec) per call 1 1 0 0.8%
Excl. Wall Time (microsec)1,173 1,146 -27 -2.3%
Incl. CPU (microsecs)2,108 2,013 -95 -4.5%
Incl. CPU (microsecs) per call 2 2 -0 -1.4%
Excl. CPU (microsec)2,108 2,013 -95 -4.5%
Incl. MemUse (bytes)61,468 60,456 -1,012 -1.6%
Incl. MemUse (bytes) per call 55 56 1 1.5%
Excl. MemUse (bytes)61,468 60,456 -1,012 -1.6%
Incl. PeakMemUse (bytes)25,624 25,588 -36 -0.1%
Incl. PeakMemUse (bytes) per call 23 24 1 3.1%
Excl. PeakMemUse (bytes)25,624 25,588 -36 -0.1%

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
substr-35 -100.0% -27 -0.8% -95 -92.2% -1,012 -0.4% -36 -0.0%
Exclusive Metrics Diff for Current Function-27 -100.0% -95 -100.0% -1,012 -100.0% -36 -100.0%
Parent functions
Twig_Environment::getCacheFilename-32 -91.4% -32 -118.5% -48 -50.5% -928 -91.7% 0 0.0%
file_uri_scheme0 0.0% 3 11.1% -14 -14.7% 0 0.0% 0 0.0%
Symfony\Component\ClassLoader\ClassLoader::findFile-4 -11.4% 3 11.1% -32 -33.7% -100 -9.9% -36 -100.0%
Drupal\views\Plugin\views\query\Sql::add_field0 0.0% -2 -7.4% 0 0.0% 0 0.0% 0 0.0%
contextual_custom_theme0 0.0% 1 3.7% 1 1.1% 0 0.0% 0 0.0%
devel_silent0 0.0% -1 -3.7% -5 -5.3% 0 0.0% 0 0.0%
image_style_path_token0 0.0% 1 3.7% 3 3.2% 0 0.0% 0 0.0%
theme@40 0.0% -1 -3.7% -3 -3.2% 0 0.0% 0 0.0%
theme@11 2.9% 1 3.7% 4 4.2% 16 1.6% 0 0.0%
text_summary0 0.0% 0 0.0% 4 4.2% 0 0.0% 0 0.0%
theme@20 0.0% 0 0.0% -1 -1.1% 0 0.0% 0 0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild0 0.0% 0 0.0% -3 -3.2% 0 0.0% 0 0.0%
drupal_strip_dangerous_protocols0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
theme@30 0.0% 0 0.0% -1 -1.1% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 0 0.0% -1 -1.1% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 3 3.2% 0 0.0% 0 0.0%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 0 0.0% -2 -2.1% 0 0.0% 0 0.0%
drupal_settings_initialize0 0.0% 0 0.0% -1 -1.1% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% 2 2.1% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 0.0% -2 -2.1% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% 1 1.1% 0 0.0% 0 0.0%
editor_custom_theme0 0.0% 0 0.0% 2 2.1% 0 0.0% 0 0.0%
edit_custom_theme0 0.0% 0 0.0% 2 2.1% 0 0.0% 0 0.0%
url0 0.0% 0 0.0% -4 -4.2% 0 0.0% 0 0.0%