Diff Report
Run #5198f0bb880ef: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198f1db1bc51: 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 #5198f0bb880efRun #5198f1db1bc51DiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)921 771 -150 -16.3%
Incl. Wall Time (microsec) per call 921 771 -150 -16.3%
Excl. Wall Time (microsec)39 42 3 7.7%
Incl. CPU (microsecs)319 322 3 0.9%
Incl. CPU (microsecs) per call 319 322 3 0.9%
Excl. CPU (microsec)34 37 3 8.8%
Incl. MemUse (bytes)12,832 12,848 16 0.1%
Incl. MemUse (bytes) per call 12,832 12,848 16 0.1%
Excl. MemUse (bytes)3,160 3,184 24 0.8%
Incl. PeakMemUse (bytes)12,472 12,488 16 0.1%
Incl. PeakMemUse (bytes) per call 12,472 12,488 16 0.1%
Excl. PeakMemUse (bytes)1,624 1,640 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 Function3 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%