Diff Report
Run #519d44ffb3845: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d45fd795a4: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for substr

substrRun #519d44ffb3845Run #519d45fd795a4DiffDiff%
Number of Function Calls1,127 1,165 38 3.4%
Incl. Wall Time (microsec)1,140 1,176 36 3.2%
Incl. Wall Time (microsec) per call 1 1 -0 -0.2%
Excl. Wall Time (microsec)1,140 1,176 36 3.2%
Incl. CPU (microsecs)2,057 2,164 107 5.2%
Incl. CPU (microsecs) per call 2 2 0 1.8%
Excl. CPU (microsec)2,057 2,164 107 5.2%
Incl. MemUse (bytes)63,716 64,556 840 1.3%
Incl. MemUse (bytes) per call 57 55 -1 -2.0%
Excl. MemUse (bytes)63,716 64,556 840 1.3%
Incl. PeakMemUse (bytes)17,308 17,308 0 0.0%
Incl. PeakMemUse (bytes) per call 15 15 -1 -3.3%
Excl. PeakMemUse (bytes)17,308 17,308 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
substr38 100.0% 36 0.1% 107 0.2% 840 0.9% 0 0.0%
Exclusive Metrics Diff for Current Function36 100.0% 107 100.0% 840 100.0% 0 N/A%
Parent functions
theme@330 78.9% 30 83.3% 47 43.9% 600 71.4% 0 N/A%
Twig_Environment::getCacheFilename8 21.1% 8 22.2% 13 12.1% 232 27.6% 0 N/A%
file_uri_scheme0 0.0% 3 8.3% 20 18.7% 0 0.0% 0 N/A%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% -2 -5.6% 2 1.9% 0 0.0% 0 N/A%
Symfony\Component\ClassLoader\ClassLoader::findFile0 0.0% -2 -5.6% 20 18.7% 0 0.0% 0 N/A%
devel_silent0 0.0% -1 -2.8% -1 -0.9% 0 0.0% 0 N/A%
Doctrine\Common\Annotations\DocParser::parse@10 0.0% 0 0.0% 0 0.0% 0 0.0% 0 N/A%
image_style_path_token0 0.0% 0 0.0% 1 0.9% 0 0.0% 0 N/A%
text_summary0 0.0% 0 0.0% -1 -0.9% 0 0.0% 0 N/A%
Doctrine\Common\Annotations\DocLexer::getType0 0.0% 0 0.0% 10 9.3% 0 0.0% 0 N/A%
url0 0.0% 0 0.0% -1 -0.9% 0 0.0% 0 N/A%
theme@10 0.0% 0 0.0% -1 -0.9% 0 0.0% 0 N/A%
Drupal\field_sql_storage\Entity\Tables::addField0 0.0% 0 0.0% 1 0.9% 0 0.0% 0 N/A%
drupal_strip_dangerous_protocols0 0.0% 0 0.0% 0 0.0% 8 1.0% 0 N/A%
theme@20 0.0% 0 0.0% 9 8.4% 0 0.0% 0 N/A%
Drupal\views\Plugin\views\query\Sql::add_field0 0.0% 0 0.0% -4 -3.7% 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%
contextual_custom_theme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 N/A%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% 3 2.8% 0 0.0% 0 N/A%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 1 0.9% 0 0.0% 0 N/A%
drupal_settings_initialize0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 N/A%
edit_custom_theme0 0.0% 0 0.0% 1 0.9% 0 0.0% 0 N/A%
editor_custom_theme0 0.0% 0 0.0% -1 -0.9% 0 0.0% 0 N/A%
Doctrine\Common\Reflection\StaticReflectionParser::__construct0 0.0% 0 0.0% -2 -1.9% 0 0.0% 0 N/A%
request_path0 0.0% 0 0.0% -1 -0.9% 0 0.0% 0 N/A%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild0 0.0% 0 0.0% -2 -1.9% 0 0.0% 0 N/A%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 0 0.0% -3 -2.8% 0 0.0% 0 N/A%
Doctrine\Common\Annotations\DocParser::parse0 0.0% 0 0.0% -4 -3.7% 0 0.0% 0 N/A%