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

substrRun #519eb7a1537f7Run #519eb880e5974DiffDiff%
Number of Function Calls1,088 1,123 35 3.2%
Incl. Wall Time (microsec)1,146 1,173 27 2.4%
Incl. Wall Time (microsec) per call 1 1 -0 -0.8%
Excl. Wall Time (microsec)1,146 1,173 27 2.4%
Incl. CPU (microsecs)2,013 2,108 95 4.7%
Incl. CPU (microsecs) per call 2 2 0 1.5%
Excl. CPU (microsec)2,013 2,108 95 4.7%
Incl. MemUse (bytes)60,456 61,468 1,012 1.7%
Incl. MemUse (bytes) per call 56 55 -1 -1.5%
Excl. MemUse (bytes)60,456 61,468 1,012 1.7%
Incl. PeakMemUse (bytes)25,588 25,624 36 0.1%
Incl. PeakMemUse (bytes) per call 24 23 -1 -3.0%
Excl. PeakMemUse (bytes)25,588 25,624 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
substr35 100.0% 27 0.8% 95 92.2% 1,012 0.4% 36 0.0%
Exclusive Metrics Diff for Current Function27 100.0% 95 100.0% 1,012 100.0% 36 100.0%
Parent functions
Twig_Environment::getCacheFilename32 91.4% 32 118.5% 48 50.5% 928 91.7% 0 0.0%
Symfony\Component\ClassLoader\ClassLoader::findFile4 11.4% -3 -11.1% 32 33.7% 100 9.9% 36 100.0%
theme@1-1 -2.9% -1 -3.7% -4 -4.2% -16 -1.6% 0 0.0%
drupal_strip_dangerous_protocols0 0.0% 0 0.0% 0 0.0% 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%
text_summary0 0.0% 0 0.0% -4 -4.2% 0 0.0% 0 0.0%
file_uri_scheme0 0.0% -3 -11.1% 14 14.7% 0 0.0% 0 0.0%
theme@20 0.0% 0 0.0% 1 1.1% 0 0.0% 0 0.0%
theme@40 0.0% 1 3.7% 3 3.2% 0 0.0% 0 0.0%
theme@30 0.0% 0 0.0% 1 1.1% 0 0.0% 0 0.0%
url0 0.0% 0 0.0% 4 4.2% 0 0.0% 0 0.0%
image_style_path_token0 0.0% -1 -3.7% -3 -3.2% 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%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% -2 -2.1% 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\Request::preparePathInfo0 0.0% 0 0.0% 2 2.1% 0 0.0% 0 0.0%
contextual_custom_theme0 0.0% -1 -3.7% -1 -1.1% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% -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%
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%
Drupal\views\Plugin\views\query\Sql::add_field0 0.0% 2 7.4% 0 0.0% 0 0.0% 0 0.0%