Diff Report
Run #5198f1db1bc51: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198f0bb880ef: 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 #5198f1db1bc51Run #5198f0bb880efDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)771 921 150 19.5%
Incl. Wall Time (microsec) per call 771 921 150 19.5%
Excl. Wall Time (microsec)42 39 -3 -7.1%
Incl. CPU (microsecs)322 319 -3 -0.9%
Incl. CPU (microsecs) per call 322 319 -3 -0.9%
Excl. CPU (microsec)37 34 -3 -8.1%
Incl. MemUse (bytes)12,848 12,832 -16 -0.1%
Incl. MemUse (bytes) per call 12,848 12,832 -16 -0.1%
Excl. MemUse (bytes)3,184 3,160 -24 -0.8%
Incl. PeakMemUse (bytes)12,488 12,472 -16 -0.1%
Incl. PeakMemUse (bytes) per call 12,488 12,472 -16 -0.1%
Excl. PeakMemUse (bytes)1,640 1,624 -16 -1.0%

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% 150 9.4% -3 -0.1% -16 -0.1% -16 -0.0%
Exclusive Metrics Diff for Current Function-3 -2.0% -3 -100.0% -24 -150.0% -16 -100.0%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 150 100.0% -3 -100.0% -16 -100.0% -16 -100.0%
Child functions
PDO::__construct0 N/A% 223 148.7% 17 566.7% 8 50.0% 0 0.0%
PDO::exec0 N/A% -69 -46.0% -16 -533.3% 0 0.0% 0 0.0%
implode0 N/A% -1 -0.7% -1 -33.3% 0 0.0% 0 0.0%