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

substrRun #519d45fd795a4Run #519d44ffb3845DiffDiff%
Number of Function Calls1,165 1,127 -38 -3.3%
Incl. Wall Time (microsec)1,176 1,140 -36 -3.1%
Incl. Wall Time (microsec) per call 1 1 0 0.2%
Excl. Wall Time (microsec)1,176 1,140 -36 -3.1%
Incl. CPU (microsecs)2,164 2,057 -107 -4.9%
Incl. CPU (microsecs) per call 2 2 -0 -1.7%
Excl. CPU (microsec)2,164 2,057 -107 -4.9%
Incl. MemUse (bytes)64,556 63,716 -840 -1.3%
Incl. MemUse (bytes) per call 55 57 1 2.0%
Excl. MemUse (bytes)64,556 63,716 -840 -1.3%
Incl. PeakMemUse (bytes)17,308 17,308 0 0.0%
Incl. PeakMemUse (bytes) per call 15 15 1 3.4%
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
substr-38 -100.0% -36 -0.1% -107 -0.2% -840 -0.9% 0 0.0%
Exclusive Metrics Diff for Current Function-36 -100.0% -107 -100.0% -840 -100.0% 0 N/A%
Parent functions
theme@3-30 -78.9% -30 -83.3% -47 -43.9% -600 -71.4% 0 N/A%
Twig_Environment::getCacheFilename-8 -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%