Diff Report
Run #519eb486908e7: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eb57e9174a: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Database\Connection::prepareQuery

Drupal\Core\Database\Connection::prepareQueryRun #519eb486908e7Run #519eb57e9174aDiffDiff%
Number of Function Calls188 183 -5 -2.7%
Incl. Wall Time (microsec)6,436 6,265 -171 -2.7%
Incl. Wall Time (microsec) per call 34 34 0 0.0%
Excl. Wall Time (microsec)1,617 1,548 -69 -4.3%
Incl. CPU (microsecs)6,638 6,447 -191 -2.9%
Incl. CPU (microsecs) per call 35 35 -0 -0.2%
Excl. CPU (microsec)1,425 1,353 -72 -5.1%
Incl. MemUse (bytes)155,952 152,372 -3,580 -2.3%
Incl. MemUse (bytes) per call 830 833 3 0.4%
Excl. MemUse (bytes)-25,516 -25,020 496 1.9%
Incl. PeakMemUse (bytes)40,540 40,476 -64 -0.2%
Incl. PeakMemUse (bytes) per call 216 221 6 2.6%
Excl. PeakMemUse (bytes)668 668 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::prepareQuery-5 -33.3% -171 -9.7% -191 -9.9% -3,580 -1.5% -64 -0.0%
Exclusive Metrics Diff for Current Function-69 -40.4% -72 -37.7% 496 13.9% 0 0.0%
Parent function
Drupal\Core\Database\Connection::query-5 -100.0% -171 -100.0% -191 -100.0% -3,580 -100.0% -64 -100.0%
Child functions
PDO::prepare-5 -50.0% -62 -36.3% -77 -40.3% -3,440 -96.1% -72 -112.5%
Drupal\Core\Database\Connection::prefixTables-5 -50.0% -40 -23.4% -42 -22.0% -636 -17.8% 8 12.5%