Diff Report
Run #539205a48c548: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #539206aca7ae8: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::select

Drupal\Core\Database\Connection::selectRun #539205a48c548Run #539206aca7ae8DiffDiff%
Number of Function Calls15 15 0 0.0%
Incl. Wall Time (microsec)1,559 1,548 -11 -0.7%
Incl. Wall Time (microsec) per call 104 103 -1 -0.7%
Excl. Wall Time (microsec)164 154 -10 -6.1%
Incl. CPU (microsecs)1,587 1,577 -10 -0.6%
Incl. CPU (microsecs) per call 106 105 -1 -0.6%
Excl. CPU (microsec)161 157 -4 -2.5%
Incl. MemUse (bytes)125,848 125,852 4 0.0%
Incl. MemUse (bytes) per call 8,390 8,390 0 0.0%
Excl. MemUse (bytes)6,704 6,704 0 0.0%
Incl. PeakMemUse (bytes)107,856 107,876 20 0.0%
Incl. PeakMemUse (bytes) per call 7,190 7,192 1 0.0%
Excl. PeakMemUse (bytes)3,996 3,996 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% -11 -0.2% -10 -0.3% 4 0.0% 20 0.0%
Exclusive Metrics Diff for Current Function-10 -90.9% -4 -40.0% 0 0.0% 0 0.0%
Parent functions
Drupal\Core\Entity\ContentEntityDatabaseStorage::attachPropertyData0 N/A% 11 100.0% 11 110.0% 0 0.0% 0 0.0%
Drupal\Core\Entity\ContentEntityDatabaseStorage::buildQuery0 N/A% -9 -81.8% -9 -90.0% 4 100.0% 20 100.0%
Drupal\Core\Entity\Query\Sql\Query::prepare0 N/A% 7 63.6% 8 80.0% 0 0.0% 0 0.0%
Drupal\Core\Entity\EntityDatabaseStorage::buildQuery0 N/A% -6 -54.5% -5 -50.0% 0 0.0% 0 0.0%
Drupal\Core\Database\Query\Select::countQuery0 N/A% -5 -45.5% -6 -60.0% 0 0.0% 0 0.0%
Drupal\comment\CommentStatistics::read0 N/A% -4 -36.4% -5 -50.0% 0 0.0% 0 0.0%
db_select0 N/A% -3 -27.3% -3 -30.0% 0 0.0% 0 0.0%
Drupal\Core\Database\Query\Merge::execute0 N/A% -2 -18.2% -1 -10.0% 0 0.0% 0 0.0%
Child functions
Drupal\Core\Database\Connection::getDriverClass0 N/A% -13 -118.2% -10 -100.0% 4 100.0% 4 20.0%
Drupal\Core\Database\Query\Select::__construct0 N/A% 12 109.1% 4 40.0% 0 0.0% 16 80.0%