Diff Report
Run #51ca5a4995c23: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51ca5b0eb2b08: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for substr

substrRun #51ca5a4995c23Run #51ca5b0eb2b08DiffDiff%
Number of Function Calls250 262 12 4.8%
Incl. Wall Time (microsec)312 318 6 1.9%
Incl. Wall Time (microsec) per call 1 1 -0 -2.7%
Excl. Wall Time (microsec)312 318 6 1.9%
Incl. CPU (microsecs)563 588 25 4.4%
Incl. CPU (microsecs) per call 2 2 -0 -0.3%
Excl. CPU (microsec)563 588 25 4.4%
Incl. MemUse (bytes)45,864 46,344 480 1.0%
Incl. MemUse (bytes) per call 183 177 -7 -3.6%
Excl. MemUse (bytes)45,864 46,344 480 1.0%
Incl. PeakMemUse (bytes)25,712 25,680 -32 -0.1%
Incl. PeakMemUse (bytes) per call 103 98 -5 -4.7%
Excl. PeakMemUse (bytes)25,712 25,680 -32 -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
substr12 100.0% 6 0.2% 25 1.0% 480 0.2% -32 -0.0%
Exclusive Metrics Diff for Current Function6 100.0% 25 100.0% 480 100.0% -32 -100.0%
Parent functions
Twig_Environment::getCacheFilename12 100.0% 13 216.7% 27 108.0% 504 105.0% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% -3 -50.0% -6 -24.0% -16 -3.3% -32 -100.0%
Drupal\system\Plugin\Block\SystemMenuBlock::build0 0.0% -1 -16.7% -1 -4.0% 0 0.0% 0 0.0%
theme@20 0.0% -1 -16.7% -4 -16.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% -1 -16.7% -1 -4.0% 0 0.0% 0 0.0%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% -1 -16.7% 5 20.0% 0 0.0% 0 0.0%
Drupal\Component\Utility\UrlValidator::stripDangerousProtocols0 0.0% 0 0.0% -1 -4.0% -8 -1.7% 0 0.0%
theme@30 0.0% 0 0.0% 1 4.0% 0 0.0% 0 0.0%
theme@10 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
theme0 0.0% 0 0.0% 1 4.0% 0 0.0% 0 0.0%
devel_silent0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 5 20.0% 0 0.0% 0 0.0%
drupal_settings_initialize0 0.0% 0 0.0% -2 -8.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 0.0% 1 4.0% 0 0.0% 0 0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% 0 0.0% 2 8.0% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Drupal\field_sql_storage\Entity\Tables::addField0 0.0% 0 0.0% -2 -8.0% 0 0.0% 0 0.0%