Diff Report
Run #53923d861ff11: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53923e49d2b58: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Query\Select::addExpression

Drupal\Core\Database\Query\Select::addExpressionRun #53923d861ff11Run #53923e49d2b58DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)33 30 -3 -9.1%
Incl. Wall Time (microsec) per call 5 4 -0 -9.1%
Excl. Wall Time (microsec)33 30 -3 -9.1%
Incl. CPU (microsecs)45 63 18 40.0%
Incl. CPU (microsecs) per call 6 9 3 40.0%
Excl. CPU (microsec)45 63 18 40.0%
Incl. MemUse (bytes)4,820 4,824 4 0.1%
Incl. MemUse (bytes) per call 689 689 1 0.1%
Excl. MemUse (bytes)4,820 4,824 4 0.1%
Incl. PeakMemUse (bytes)2,256 2,260 4 0.2%
Incl. PeakMemUse (bytes) per call 322 323 1 0.2%
Excl. PeakMemUse (bytes)2,256 2,260 4 0.2%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Query\Select::addExpression [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\Query\Select::addExpression0 N/A% -3 -0.2% 18 1.6% 4 0.5% 4 0.6%
Exclusive Metrics Diff for Current Function-3 -100.0% 18 100.0% 4 100.0% 4 100.0%
Parent functions
Drupal\Core\Entity\ContentEntityDatabaseStorage::buildQuery0 N/A% -3 -100.0% -1 -5.6% 0 0.0% 0 0.0%
Drupal\Core\Database\Query\SelectExtender::addExpression0 N/A% 0 0.0% 2 11.1% 0 0.0% 0 0.0%
comment_get_thread0 N/A% 0 0.0% 17 94.4% 4 100.0% 4 100.0%