Diff Report
Run #519d45fd795a4: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d44ffb3845: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::select

Drupal\Core\Database\Connection::selectRun #519d45fd795a4Run #519d44ffb3845DiffDiff%
Number of Function Calls12 12 0 0.0%
Incl. Wall Time (microsec)2,867 2,924 57 2.0%
Incl. Wall Time (microsec) per call 239 244 5 2.0%
Excl. Wall Time (microsec)209 209 0 0.0%
Incl. CPU (microsecs)2,891 2,946 55 1.9%
Incl. CPU (microsecs) per call 241 246 5 1.9%
Excl. CPU (microsec)203 197 -6 -3.0%
Incl. MemUse (bytes)161,408 161,408 0 0.0%
Incl. MemUse (bytes) per call 13,451 13,451 0 0.0%
Excl. MemUse (bytes)19,700 19,700 0 0.0%
Incl. PeakMemUse (bytes)144,740 144,740 0 0.0%
Incl. PeakMemUse (bytes) per call 12,062 12,062 0 0.0%
Excl. PeakMemUse (bytes)11,796 11,796 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Connection::select [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
Drupal\Core\Database\Connection::select0 N/A% 57 0.1% 55 0.1% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function0 0.0% -6 -10.9% 0 N/A% 0 N/A%
Parent functions
Drupal\user\UserData::get0 N/A% 89 156.1% 89 161.8% 0 N/A% 0 N/A%
db_select0 N/A% -11 -19.3% -13 -23.6% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Select::countQuery0 N/A% -9 -15.8% -9 -16.4% 0 N/A% 0 N/A%
Drupal\field_sql_storage\Entity\Query::prepare0 N/A% -8 -14.0% -7 -12.7% 0 N/A% 0 N/A%
Drupal\views\Plugin\views\query\Sql::query0 N/A% -2 -3.5% -2 -3.6% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Merge::execute0 N/A% -2 -3.5% -3 -5.5% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Database\Connection::getDriverClass0 N/A% 59 103.5% 60 109.1% 0 N/A% 0 N/A%
Drupal\Core\Database\Query\Select::__construct0 N/A% -2 -3.5% 1 1.8% 0 N/A% 0 N/A%