Diff Report
Run #5198b38f0f1d5: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198b3cd5c9c1: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for substr

substrRun #5198b38f0f1d5Run #5198b3cd5c9c1DiffDiff%
Number of Function Calls26 30 4 15.4%
Incl. Wall Time (microsec)10 10 0 0.0%
Incl. Wall Time (microsec) per call 0 0 -0 -13.3%
Excl. Wall Time (microsec)10 10 0 0.0%
Incl. CPU (microsecs)38 47 9 23.7%
Incl. CPU (microsecs) per call 1 2 0 7.2%
Excl. CPU (microsec)38 47 9 23.7%
Incl. MemUse (bytes)12,824 12,992 168 1.3%
Incl. MemUse (bytes) per call 493 433 -60 -12.2%
Excl. MemUse (bytes)12,824 12,992 168 1.3%
Incl. PeakMemUse (bytes)4,368 4,368 0 0.0%
Incl. PeakMemUse (bytes) per call 168 146 -22 -13.3%
Excl. PeakMemUse (bytes)4,368 4,368 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
substr4 100.0% 0 0.0% 9 3.2% 168 0.4% 0 0.0%
Exclusive Metrics Diff for Current Function0 N/A% 9 100.0% 168 100.0% 0 N/A%
Parent functions
Twig_Environment::getCacheFilename4 100.0% 1 N/A% 4 44.4% 168 100.0% 0 N/A%
drupal_settings_initialize0 0.0% -1 N/A% 1 11.1% 0 0.0% 0 N/A%
theme@20 0.0% 0 N/A% -1 -11.1% 0 0.0% 0 N/A%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 0 N/A% 3 33.3% 0 0.0% 0 N/A%
drupal_strip_dangerous_protocols0 0.0% 0 N/A% -2 -22.2% 0 0.0% 0 N/A%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 N/A% 2 22.2% 0 0.0% 0 N/A%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% 0 N/A% 2 22.2% 0 0.0% 0 N/A%
Drupal\Component\Uuid\Php::generate0 0.0% 0 N/A% -1 -11.1% 0 0.0% 0 N/A%
request_path0 0.0% 0 N/A% 0 0.0% 0 0.0% 0 N/A%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 N/A% 1 11.1% 0 0.0% 0 N/A%