Diff Report
Run #517c75d3de7c7: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c76da9b0d3: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for substr

substrRun #517c75d3de7c7Run #517c76da9b0d3DiffDiff%
Number of Function Calls1,407 652 -755 -53.7%
Incl. Wall Time (microsec)473 241 -232 -49.0%
Incl. Wall Time (microsec) per call 0 0 0 10.0%
Excl. Wall Time (microsec)473 241 -232 -49.0%
Incl. CPU (microsecs)1,640 816 -824 -50.2%
Incl. CPU (microsecs) per call 1 1 0 7.4%
Excl. CPU (microsec)1,640 816 -824 -50.2%
Incl. MemUse (bytes)91,968 51,048 -40,920 -44.5%
Incl. MemUse (bytes) per call 65 78 13 19.8%
Excl. MemUse (bytes)91,968 51,048 -40,920 -44.5%
Incl. PeakMemUse (bytes)21,040 20,240 -800 -3.8%
Incl. PeakMemUse (bytes) per call 15 31 16 107.6%
Excl. PeakMemUse (bytes)21,040 20,240 -800 -3.8%

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-755 -100.0% -232 -0.1% -824 -0.8% -40,920 -16.8% -800 -0.2%
Exclusive Metrics Diff for Current Function-232 -100.0% -824 -100.0% -40,920 -100.0% -800 -100.0%
Parent functions
dblog_watchdog-450 -59.6% -230 -99.1% -525 -63.7% -22,360 -54.6% -216 -27.0%
_drupal_log_error-300 -39.7% -51 -22.0% -327 -39.7% -17,568 -42.9% 0 0.0%
Symfony\Component\ClassLoader\ClassLoader::findFile-8 -1.1% 44 19.0% 11 1.3% -336 -0.8% -104 -13.0%
Drupal\system\Plugin\block\block\SystemMenuBlock::blockBuild0 0.0% 1 0.4% 1 0.1% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename4 0.5% 1 0.4% 4 0.5% 168 0.4% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% 1 0.4% 5 0.6% 0 0.0% 0 0.0%
drupal_strip_dangerous_protocols0 0.0% 1 0.4% 0 0.0% 0 0.0% 0 0.0%
devel_silent0 0.0% -1 -0.4% 5 0.6% 0 0.0% 0 0.0%
drupal_random_bytes0 0.0% 1 0.4% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 1 0.4% 2 0.2% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% -1 -0.1% 0 0.0% 0 0.0%
drupal_settings_initialize0 0.0% 0 0.0% -1 -0.1% 0 0.0% 0 0.0%
_drupal_session_read-1 -0.1% 0 0.0% -2 -0.2% -824 -2.0% -480 -60.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 1 0.1% 0 0.0% 0 0.0%
theme@20 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 0.0% -1 -0.1% 0 0.0% 0 0.0%
theme@10 0.0% 0 0.0% 4 0.5% 0 0.0% 0 0.0%
editor_custom_theme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
edit_custom_theme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%