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

substrRun #517c76da9b0d3Run #517c75d3de7c7DiffDiff%
Number of Function Calls652 1,407 755 115.8%
Incl. Wall Time (microsec)241 473 232 96.3%
Incl. Wall Time (microsec) per call 0 0 -0 -9.1%
Excl. Wall Time (microsec)241 473 232 96.3%
Incl. CPU (microsecs)816 1,640 824 101.0%
Incl. CPU (microsecs) per call 1 1 -0 -6.9%
Excl. CPU (microsec)816 1,640 824 101.0%
Incl. MemUse (bytes)51,048 91,968 40,920 80.2%
Incl. MemUse (bytes) per call 78 65 -13 -16.5%
Excl. MemUse (bytes)51,048 91,968 40,920 80.2%
Incl. PeakMemUse (bytes)20,240 21,040 800 4.0%
Incl. PeakMemUse (bytes) per call 31 15 -16 -51.8%
Excl. PeakMemUse (bytes)20,240 21,040 800 4.0%

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
substr755 100.0% 232 0.1% 824 0.8% 40,920 16.8% 800 0.2%
Exclusive Metrics Diff for Current Function232 100.0% 824 100.0% 40,920 100.0% 800 100.0%
Parent functions
dblog_watchdog450 59.6% 230 99.1% 525 63.7% 22,360 54.6% 216 27.0%
_drupal_log_error300 39.7% 51 22.0% 327 39.7% 17,568 42.9% 0 0.0%
Symfony\Component\ClassLoader\ClassLoader::findFile8 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::getCacheFilename-4 -0.5% -1 -0.4% -4 -0.5% -168 -0.4% 0 0.0%
drupal_strip_dangerous_protocols0 0.0% -1 -0.4% 0 0.0% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\AcceptHeaderItem::fromString0 0.0% -1 -0.4% -5 -0.6% 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%
theme@20 0.0% 0 0.0% 0 0.0% 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_read1 0.1% 0 0.0% 2 0.2% 824 2.0% 480 60.0%
request_path0 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%
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%