Diff Report
Run #52e417f8e04a5: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52e4189e0e4fe: 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 #52e417f8e04a5Run #52e4189e0e4feDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)403 299 -104 -25.8%
Incl. Wall Time (microsec) per call 403 299 -104 -25.8%
Excl. Wall Time (microsec)37 26 -11 -29.7%
Incl. CPU (microsecs)188 132 -56 -29.8%
Incl. CPU (microsecs) per call 188 132 -56 -29.8%
Excl. CPU (microsec)31 21 -10 -32.3%
Incl. MemUse (bytes)12,992 12,992 0 0.0%
Incl. MemUse (bytes) per call 12,992 12,992 0 0.0%
Excl. MemUse (bytes)3,344 3,344 0 0.0%
Incl. PeakMemUse (bytes)12,648 12,648 0 0.0%
Incl. PeakMemUse (bytes) per call 12,648 12,648 0 0.0%
Excl. PeakMemUse (bytes)1,808 1,808 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% -104 -28.1% -56 -16.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-11 -10.6% -10 -17.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% -104 -100.0% -56 -100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% -77 -74.0% -43 -76.8% 0 N/A% 0 N/A%
PDO::exec0 N/A% -15 -14.4% -2 -3.6% 0 N/A% 0 N/A%
implode0 N/A% -1 -1.0% -1 -1.8% 0 N/A% 0 N/A%