Diff Report
Run #52e436ce9c71d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e4374042ace: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::prepareQuery

Drupal\Core\Database\Connection::prepareQueryRun #52e436ce9c71dRun #52e4374042aceDiffDiff%
Number of Function Calls121 122 1 0.8%
Incl. Wall Time (microsec)2,228 2,263 35 1.6%
Incl. Wall Time (microsec) per call 18 19 0 0.7%
Excl. Wall Time (microsec)586 601 15 2.6%
Incl. CPU (microsecs)2,337 2,374 37 1.6%
Incl. CPU (microsecs) per call 19 19 0 0.8%
Excl. CPU (microsec)496 501 5 1.0%
Incl. MemUse (bytes)121,352 122,304 952 0.8%
Incl. MemUse (bytes) per call 1,003 1,002 -0 -0.0%
Excl. MemUse (bytes)-16,976 -17,128 -152 -0.9%
Incl. PeakMemUse (bytes)50,832 51,480 648 1.3%
Incl. PeakMemUse (bytes) per call 420 422 2 0.4%
Excl. PeakMemUse (bytes)2,976 2,896 -80 -2.7%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Connection::prepareQuery [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::prepareQuery1 33.3% 35 3.0% 37 3.7% 952 1.2% 648 0.8%
Exclusive Metrics Diff for Current Function15 42.9% 5 13.5% -152 -16.0% -80 -12.3%
Parent function
Drupal\Core\Database\Connection::query1 100.0% 35 100.0% 37 100.0% 952 100.0% 648 100.0%
Child functions
Drupal\Core\Database\Connection::prefixTables1 50.0% 27 77.1% 23 62.2% 200 21.0% 344 53.1%
PDO::prepare1 50.0% -7 -20.0% 9 24.3% 904 95.0% 384 59.3%