Diff Report
Run #519c146573182: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c116ac5313: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::select

Drupal\Core\Database\Connection::selectRun #519c146573182Run #519c116ac5313DiffDiff%
Number of Function Calls22 22 0 0.0%
Incl. Wall Time (microsec)3,858 4,032 174 4.5%
Incl. Wall Time (microsec) per call 175 183 8 4.5%
Excl. Wall Time (microsec)387 381 -6 -1.6%
Incl. CPU (microsecs)3,888 4,073 185 4.8%
Incl. CPU (microsecs) per call 177 185 8 4.8%
Excl. CPU (microsec)362 366 4 1.1%
Incl. MemUse (bytes)196,168 196,156 -12 -0.0%
Incl. MemUse (bytes) per call 8,917 8,916 -1 -0.0%
Excl. MemUse (bytes)31,912 31,912 0 0.0%
Incl. PeakMemUse (bytes)155,276 155,256 -20 -0.0%
Incl. PeakMemUse (bytes) per call 7,058 7,057 -1 -0.0%
Excl. PeakMemUse (bytes)13,672 13,672 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% 174 0.3% 185 0.3% -12 -0.0% -20 -0.0%
Exclusive Metrics Diff for Current Function-6 -3.4% 4 2.2% 0 0.0% 0 0.0%
Parent functions
Drupal\user\UserData::get0 N/A% 157 90.2% 157 84.9% 0 0.0% 0 0.0%
db_select0 N/A% 15 8.6% 23 12.4% -12 -100.0% -20 -100.0%
Drupal\views\Plugin\views\query\Sql::query0 N/A% 1 0.6% 3 1.6% 0 0.0% 0 0.0%
Drupal\Core\Database\Query\Select::countQuery0 N/A% 1 0.6% 2 1.1% 0 0.0% 0 0.0%
Child functions
Drupal\Core\Database\Connection::getDriverClass0 N/A% 155 89.1% 151 81.6% 0 0.0% 0 0.0%
Drupal\Core\Database\Query\Select::__construct0 N/A% 25 14.4% 30 16.2% -12 -100.0% -20 -100.0%