Diff Report
Run #517c1c27a12c9: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c1bb406b02: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for substr

substrRun #517c1c27a12c9Run #517c1bb406b02DiffDiff%
Number of Function Calls648 1,407 759 117.1%
Incl. Wall Time (microsec)259 509 250 96.5%
Incl. Wall Time (microsec) per call 0 0 -0 -9.5%
Excl. Wall Time (microsec)259 509 250 96.5%
Incl. CPU (microsecs)822 1,735 913 111.1%
Incl. CPU (microsecs) per call 1 1 -0 -2.8%
Excl. CPU (microsec)822 1,735 913 111.1%
Incl. MemUse (bytes)50,880 91,968 41,088 80.8%
Incl. MemUse (bytes) per call 79 65 -13 -16.8%
Excl. MemUse (bytes)50,880 91,968 41,088 80.8%
Incl. PeakMemUse (bytes)20,240 21,192 952 4.7%
Incl. PeakMemUse (bytes) per call 31 15 -16 -51.8%
Excl. PeakMemUse (bytes)20,240 21,192 952 4.7%

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
substr759 100.0% 250 0.1% 913 0.8% 41,088 9.2% 952 0.2%
Exclusive Metrics Diff for Current Function250 100.0% 913 100.0% 41,088 100.0% 952 100.0%
Parent functions
dblog_watchdog450 59.3% 240 96.0% 553 60.6% 22,360 54.4% 416 43.7%
_drupal_log_error300 39.5% 54 21.6% 341 37.3% 17,568 42.8% 0 0.0%
Symfony\Component\ClassLoader\ClassLoader::findFile8 1.1% -43 -17.2% 5 0.5% 336 0.8% 56 5.9%
theme@10 0.0% -2 -0.8% -1 -0.1% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename0 0.0% -1 -0.4% 0 0.0% 0 0.0% 0 0.0%
edit_custom_theme0 0.0% 1 0.4% 2 0.2% 0 0.0% 0 0.0%
drupal_strip_dangerous_protocols0 0.0% 1 0.4% -1 -0.1% 0 0.0% 0 0.0%
_drupal_session_read1 0.1% 1 0.4% 1 0.1% 824 2.0% 480 50.4%
drupal_random_bytes0 0.0% -1 -0.4% 2 0.2% 0 0.0% 0 0.0%
theme@20 0.0% 0 0.0% 1 0.1% 0 0.0% 0 0.0%
Drupal\system\Plugin\block\block\SystemMenuBlock::blockBuild0 0.0% 0 0.0% 1 0.1% 0 0.0% 0 0.0%
devel_silent0 0.0% 0 0.0% -1 -0.1% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 1 0.1% 0 0.0% 0 0.0%
drupal_settings_initialize0 0.0% 0 0.0% 3 0.3% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% 4 0.4% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% 1 0.1% 0 0.0% 0 0.0%
editor_custom_theme0 0.0% 0 0.0% 2 0.2% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 0 0.0% -1 -0.1% 0 0.0% 0 0.0%