Diff Report
Run #517c1bb406b02: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c1c27a12c9: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Database\Database::getConnection

Drupal\Core\Database\Database::getConnectionRun #517c1bb406b02Run #517c1c27a12c9DiffDiff%
Number of Function Calls160 9 -151 -94.4%
Incl. Wall Time (microsec)1,759 1,020 -739 -42.0%
Incl. Wall Time (microsec) per call 11 113 102 930.9%
Excl. Wall Time (microsec)398 44 -354 -88.9%
Incl. CPU (microsecs)1,292 806 -486 -37.6%
Incl. CPU (microsecs) per call 8 90 81 1009.0%
Excl. CPU (microsec)527 59 -468 -88.8%
Incl. MemUse (bytes)179,760 178,160 -1,600 -0.9%
Incl. MemUse (bytes) per call 1,124 19,796 18,672 1662.0%
Excl. MemUse (bytes)5,728 4,136 -1,592 -27.8%
Incl. PeakMemUse (bytes)177,600 176,800 -800 -0.5%
Incl. PeakMemUse (bytes) per call 1,110 19,644 18,534 1669.8%
Excl. PeakMemUse (bytes)3,792 3,024 -768 -20.3%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Database::getConnection [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\Database::getConnection-151 -100.0% -739 -0.3% -486 -0.4% -1,600 -0.4% -800 -0.1%
Exclusive Metrics Diff for Current Function-354 -47.9% -468 -96.3% -1,592 -99.5% -768 -96.0%
Parent functions
dblog_watchdog-150 -99.3% -352 -47.6% -467 -96.1% -800 -50.0% -368 -46.0%
db_merge-1 -0.7% -5 -0.7% -6 -1.2% -792 -49.5% -480 -60.0%
db_select0 0.0% 1 0.1% 1 0.2% 0 0.0% -48 -6.0%
db_query_range0 0.0% 0 0.0% 0 0.0% 0 0.0% 0 0.0%
db_query0 0.0% 2 0.3% 5 1.0% 0 0.0% 0 0.0%
call_user_func0 0.0% -385 -52.1% -19 -3.9% -8 -0.5% 96 12.0%
Child function
Drupal\Core\Database\Database::openConnection0 N/A% -385 -52.1% -18 -3.7% -8 -0.5% -32 -4.0%