Diff Report
Run #519af59f030f2: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519af3b0bf970: 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 #519af59f030f2Run #519af3b0bf970DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)704 551 -153 -21.7%
Incl. Wall Time (microsec) per call 704 551 -153 -21.7%
Excl. Wall Time (microsec)42 40 -2 -4.8%
Incl. CPU (microsecs)289 279 -10 -3.5%
Incl. CPU (microsecs) per call 289 279 -10 -3.5%
Excl. CPU (microsec)34 36 2 5.9%
Incl. MemUse (bytes)12,848 12,848 0 0.0%
Incl. MemUse (bytes) per call 12,848 12,848 0 0.0%
Excl. MemUse (bytes)3,160 3,160 0 0.0%
Incl. PeakMemUse (bytes)12,568 12,568 0 0.0%
Incl. PeakMemUse (bytes) per call 12,568 12,568 0 0.0%
Excl. PeakMemUse (bytes)1,752 1,752 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% -153 -6.1% -10 -0.4% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-2 -1.3% 2 20.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -153 -100.0% -10 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -145 -94.8% -11 -110.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% -6 -3.9% -1 -10.0% 0 N/A% 0 N/A%
implode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%