Diff Report
Run #519abf80bb905: XHProf Run (Namespace=drupal-perf-jenlampton)
vs.
Run #519ac1c42d00d: XHProf Run (Namespace=drupal-perf-jenlampton)
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Regression/Improvement summary for substr

substrRun #519abf80bb905Run #519ac1c42d00dDiffDiff%
Number of Function Calls833 849 16 1.9%
Incl. Wall Time (microsec)1,137 1,139 2 0.2%
Incl. Wall Time (microsec) per call 1 1 -0 -1.7%
Excl. Wall Time (microsec)1,137 1,139 2 0.2%
Incl. CPU (microsecs)2,039 2,017 -22 -1.1%
Incl. CPU (microsecs) per call 2 2 -0 -2.9%
Excl. CPU (microsec)2,039 2,017 -22 -1.1%
Incl. MemUse (bytes)69,848 72,672 2,824 4.0%
Incl. MemUse (bytes) per call 84 86 2 2.1%
Excl. MemUse (bytes)69,848 72,672 2,824 4.0%
Incl. PeakMemUse (bytes)16,104 15,680 -424 -2.6%
Incl. PeakMemUse (bytes) per call 19 18 -1 -4.5%
Excl. PeakMemUse (bytes)16,104 15,680 -424 -2.6%

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
substr16 100.0% 2 0.0% -22 -0.2% 2,824 1.8% -424 -0.0%
Exclusive Metrics Diff for Current Function2 100.0% -22 -100.0% 2,824 100.0% -424 -100.0%
Parent functions
Drupal\Component\Utility\Crypt::randomBytes0 0.0% -17 -850.0% -21 -95.5% 0 0.0% 0 0.0%
theme@29 56.2% 9 450.0% 20 90.9% 288 10.2% 0 0.0%
_filter_xss_split4 25.0% 7 350.0% 13 59.1% 896 31.7% 0 0.0%
_drupal_log_error4 25.0% 4 200.0% 8 36.4% 976 34.6% 0 0.0%
dblog_watchdog3 18.8% 4 200.0% 6 27.3% 144 5.1% 0 0.0%
Twig_Error::updateRepr-2 -12.5% -3 -150.0% -6 -27.3% -952 -33.7% -872 -205.7%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString-2 -12.5% -3 -150.0% -5 -22.7% -64 -2.3% -32 -7.5%
Symfony\Component\HttpFoundation\Request::preparePathInfo-1 -6.2% -2 -100.0% -4 -18.2% -32 -1.1% 0 0.0%
_filter_xss_attributes2 12.5% 2 100.0% 6 27.3% 832 29.5% 480 113.2%
Symfony\Component\ClassLoader\ClassLoader::findFile-2 -12.5% 2 100.0% -46 -209.1% -96 -3.4% 0 0.0%
request_path0 0.0% 1 50.0% 2 9.1% 0 0.0% 0 0.0%
contextual_custom_theme0 0.0% -1 -50.0% -1 -4.5% 0 0.0% 0 0.0%
_drupal_session_read1 6.2% 1 50.0% 4 18.2% 824 29.2% 0 0.0%
drupal_strip_dangerous_protocols0 0.0% -1 -50.0% -1 -4.5% 0 0.0% 0 0.0%
theme@10 0.0% -1 -50.0% 2 9.1% 0 0.0% 0 0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild0 0.0% 0 0.0% -5 -22.7% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% -1 -4.5% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 1 4.5% 8 0.3% 0 0.0%
drupal_settings_initialize0 0.0% 0 0.0% 1 4.5% 0 0.0% 0 0.0%
edit_custom_theme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
editor_custom_theme0 0.0% 0 0.0% 1 4.5% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename0 0.0% 0 0.0% -1 -4.5% 0 0.0% 0 0.0%
Drupal\views\Plugin\views\query\Sql::add_field0 0.0% 0 0.0% 5 22.7% 0 0.0% 0 0.0%
Drupal\field_sql_storage\Entity\Tables::addField0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%