Diff Report
Run #51ec66a5a877d: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec623000e0c: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::prepareQuery

Drupal\Core\Database\Connection::prepareQueryRun #51ec66a5a877dRun #51ec623000e0cDiffDiff%
Number of Function Calls300 300 0 0.0%
Incl. Wall Time (microsec)6,222 6,153 -69 -1.1%
Incl. Wall Time (microsec) per call 21 21 -0 -1.1%
Excl. Wall Time (microsec)1,487 1,499 12 0.8%
Incl. CPU (microsecs)6,473 6,409 -64 -1.0%
Incl. CPU (microsecs) per call 22 21 -0 -1.0%
Excl. CPU (microsec)1,276 1,280 4 0.3%
Incl. MemUse (bytes)285,472 285,552 80 0.0%
Incl. MemUse (bytes) per call 952 952 0 0.0%
Excl. MemUse (bytes)-42,112 -42,104 8 0.0%
Incl. PeakMemUse (bytes)53,200 53,040 -160 -0.3%
Incl. PeakMemUse (bytes) per call 177 177 -1 -0.3%
Excl. PeakMemUse (bytes)2,704 2,704 0 0.0%

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::prepareQuery0 N/A% -69 -2.9% -64 -1.9% 80 0.1% -160 -0.2%
Exclusive Metrics Diff for Current Function12 17.4% 4 6.2% 8 10.0% 0 0.0%
Parent function
Drupal\Core\Database\Connection::query0 N/A% -69 -100.0% -64 -100.0% 80 100.0% -160 -100.0%
Child functions
PDO::prepare0 N/A% -51 -73.9% -60 -93.8% 64 80.0% -120 -75.0%
Drupal\Core\Database\Connection::prefixTables0 N/A% -30 -43.5% -8 -12.5% 8 10.0% -40 -25.0%