Diff Report
Run #519eb880e5974: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eb7a1537f7: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for PDO::prepare

PDO::prepareRun #519eb880e5974Run #519eb7a1537f7DiffDiff%
Number of Function Calls183 188 5 2.7%
Incl. Wall Time (microsec)3,009 3,100 91 3.0%
Incl. Wall Time (microsec) per call 16 16 0 0.3%
Excl. Wall Time (microsec)1,437 1,447 10 0.7%
Incl. CPU (microsecs)3,166 3,294 128 4.0%
Incl. CPU (microsecs) per call 17 18 0 1.3%
Excl. CPU (microsec)1,419 1,477 58 4.1%
Incl. MemUse (bytes)145,372 148,812 3,440 2.4%
Incl. MemUse (bytes) per call 794 792 -3 -0.4%
Excl. MemUse (bytes)144,312 147,752 3,440 2.4%
Incl. PeakMemUse (bytes)22,476 22,548 72 0.3%
Incl. PeakMemUse (bytes) per call 123 120 -3 -2.3%
Excl. PeakMemUse (bytes)21,360 21,432 72 0.3%

Parent/Child Regression/Improvement report for PDO::prepare [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
PDO::prepare5 50.0% 91 2.5% 128 124.3% 3,440 1.5% 72 0.0%
Exclusive Metrics Diff for Current Function10 11.0% 58 45.3% 3,440 100.0% 72 100.0%
Parent function
Drupal\Core\Database\Connection::prepareQuery5 100.0% 91 100.0% 128 100.0% 3,440 100.0% 72 100.0%
Child function
Drupal\Core\Database\Statement::__construct5 100.0% 81 89.0% 70 54.7% 0 0.0% 0 0.0%