Diff Report
Run #541de429e5ab1: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #541de5cbd937a: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #541de429e5ab1Run #541de5cbd937aDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)365 380 15 4.1%
Incl. Wall Time (microsec) per call 365 380 15 4.1%
Excl. Wall Time (microsec)34 31 -3 -8.8%
Incl. CPU (microsecs)156 154 -2 -1.3%
Incl. CPU (microsecs) per call 156 154 -2 -1.3%
Excl. CPU (microsec)31 27 -4 -12.9%
Incl. MemUse (bytes)13,168 13,168 0 0.0%
Incl. MemUse (bytes) per call 13,168 13,168 0 0.0%
Excl. MemUse (bytes)3,504 3,504 0 0.0%
Incl. PeakMemUse (bytes)12,728 12,728 0 0.0%
Incl. PeakMemUse (bytes) per call 12,728 12,728 0 0.0%
Excl. PeakMemUse (bytes)2,088 2,088 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Driver\mysql\Connection::open [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\Driver\mysql\Connection::open0 N/A% 15 0.2% -2 -0.0% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-3 -20.0% -4 -200.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 15 100.0% -2 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::exec0 N/A% 23 153.3% 1 50.0% 0 N/A% 0 N/A%
PDO::__construct0 N/A% -5 -33.3% -1 -50.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 2 100.0% 0 N/A% 0 N/A%