Diff Report
Run #519c1681d41e5: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c153c76aa0: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for substr

substrRun #519c1681d41e5Run #519c153c76aa0DiffDiff%
Number of Function Calls872 868 -4 -0.5%
Incl. Wall Time (microsec)937 989 52 5.5%
Incl. Wall Time (microsec) per call 1 1 0 6.0%
Excl. Wall Time (microsec)937 989 52 5.5%
Incl. CPU (microsecs)1,830 1,862 32 1.7%
Incl. CPU (microsecs) per call 2 2 0 2.2%
Excl. CPU (microsec)1,830 1,862 32 1.7%
Incl. MemUse (bytes)76,192 76,080 -112 -0.1%
Incl. MemUse (bytes) per call 87 88 0 0.3%
Excl. MemUse (bytes)76,192 76,080 -112 -0.1%
Incl. PeakMemUse (bytes)30,832 30,848 16 0.1%
Incl. PeakMemUse (bytes) per call 35 36 0 0.5%
Excl. PeakMemUse (bytes)30,832 30,848 16 0.1%

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% 52 1.4% 32 1.1% -112 -0.2% 16 0.0%
Exclusive Metrics Diff for Current Function52 100.0% 32 100.0% -112 -100.0% 16 100.0%
Parent functions
Symfony\Component\ClassLoader\ClassLoader::findFile0 0.0% 56 107.7% 76 237.5% 48 42.9% 16 100.0%
Drupal\Component\Utility\Crypt::randomBytes0 0.0% -10 -19.2% -12 -37.5% 24 21.4% 0 0.0%
file_uri_scheme0 0.0% 9 17.3% 9 28.1% 0 0.0% 0 0.0%
Twig_Environment::getCacheFilename-4 -100.0% -5 -9.6% -6 -18.8% -168 -150.0% 0 0.0%
text_summary0 0.0% 4 7.7% 5 15.6% 0 0.0% 0 0.0%
Drupal\views\Plugin\views\query\Sql::add_field0 0.0% -2 -3.8% -13 -40.6% 0 0.0% 0 0.0%
theme@20 0.0% 0 0.0% -2 -6.2% 0 0.0% 0 0.0%
Drupal\system\Plugin\Block\SystemMenuBlock::blockBuild0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
theme@40 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
image_style_path_token0 0.0% 0 0.0% -3 -9.4% 0 0.0% 0 0.0%
drupal_strip_dangerous_protocols0 0.0% 0 0.0% 1 3.1% 0 0.0% 0 0.0%
theme@10 0.0% 0 0.0% -1 -3.1% 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%
Symfony\Component\HttpFoundation\ServerBag::getHeaders0 0.0% 0 0.0% -2 -6.2% 0 0.0% 0 0.0%
Drupal\Component\Uuid\Php::generate0 0.0% 0 0.0% 2 6.2% 0 0.0% 0 0.0%
drupal_settings_initialize0 0.0% 0 0.0% -3 -9.4% 0 0.0% 0 0.0%
Symfony\Component\HttpFoundation\Request::preparePathInfo0 0.0% 0 0.0% -18 -56.2% 0 0.0% 0 0.0%
contextual_custom_theme0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
request_path0 0.0% 0 0.0% -1 -3.1% -16 -14.3% 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%
url0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%