Diff Report
Run #5198f1db1bc51: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198f0bb880ef: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for substr

substrRun #5198f1db1bc51Run #5198f0bb880efDiffDiff%
Number of Function Calls167 163 -4 -2.4%
Incl. Wall Time (microsec)49 44 -5 -10.2%
Incl. Wall Time (microsec) per call 0 0 -0 -8.0%
Excl. Wall Time (microsec)49 44 -5 -10.2%
Incl. CPU (microsecs)214 210 -4 -1.9%
Incl. CPU (microsecs) per call 1 1 0 0.5%
Excl. CPU (microsec)214 210 -4 -1.9%
Incl. MemUse (bytes)28,704 28,536 -168 -0.6%
Incl. MemUse (bytes) per call 172 175 3 1.9%
Excl. MemUse (bytes)28,704 28,536 -168 -0.6%
Incl. PeakMemUse (bytes)9,808 10,120 312 3.2%
Incl. PeakMemUse (bytes) per call 59 62 3 5.7%
Excl. PeakMemUse (bytes)9,808 10,120 312 3.2%

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-4 -100.0% -5 -0.3% -4 -0.2% -168 -0.6% 312 0.8%
Exclusive Metrics Diff for Current Function-5 -100.0% -4 -100.0% -168 -100.0% 312 100.0%
Parent functions
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% -2 -40.0% 0 0.0% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename-4 -100.0% -2 -40.0% -6 -150.0% -168 -100.0% -88 -28.2%
Drupal\Component\Uuid\Php::generate0 0.0% -1 -20.0% -1 -25.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% -1 -20.0% 1 25.0% 0 0.0% 0 0.0%
drupal_settings_initialize0 0.0% 1 20.0% 2 50.0% 0 0.0% 0 0.0%
theme@30 0.0% 0 0.0% 2 50.0% 0 0.0% 0 0.0%
theme@20 0.0% 0 0.0% 2 50.0% 0 0.0% 0 0.0%
dblog_watchdog0 0.0% 0 0.0% -2 -50.0% 0 0.0% 0 0.0%
drupal_strip_dangerous_protocols0 0.0% 0 0.0% -1 -25.0% 0 0.0% 0 0.0%
theme@40 0.0% 0 0.0% 5 125.0% 0 0.0% 400 128.2%
theme@10 0.0% 0 0.0% 1 25.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
edit_custom_theme0 0.0% 0 0.0% -1 -25.0% 0 0.0% 0 0.0%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 0 0.0% -2 -50.0% 0 0.0% 0 0.0%
editor_custom_theme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\Routing\RouteCompiler::compilePattern0 0.0% 0 0.0% -3 -75.0% 0 0.0% 0 0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild0 0.0% 0 0.0% -2 -50.0% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% -1 -25.0% 0 0.0% 0 0.0%
Drupal\field_sql_storage\Entity\Tables::addField0 0.0% 0 0.0% 2 50.0% 0 0.0% 0 0.0%