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

Drupal\Core\Database\Database::getConnectionRun #517c1c27a12c9Run #517c1bb406b02DiffDiff%
Number of Function Calls9 160 151 1677.8%
Incl. Wall Time (microsec)1,020 1,759 739 72.5%
Incl. Wall Time (microsec) per call 113 11 -102 -90.3%
Excl. Wall Time (microsec)44 398 354 804.5%
Incl. CPU (microsecs)806 1,292 486 60.3%
Incl. CPU (microsecs) per call 90 8 -81 -91.0%
Excl. CPU (microsec)59 527 468 793.2%
Incl. MemUse (bytes)178,160 179,760 1,600 0.9%
Incl. MemUse (bytes) per call 19,796 1,124 -18,672 -94.3%
Excl. MemUse (bytes)4,136 5,728 1,592 38.5%
Incl. PeakMemUse (bytes)176,800 177,600 800 0.5%
Incl. PeakMemUse (bytes) per call 19,644 1,110 -18,534 -94.3%
Excl. PeakMemUse (bytes)3,024 3,792 768 25.4%

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::getConnection151 100.0% 739 0.3% 486 0.4% 1,600 0.4% 800 0.1%
Exclusive Metrics Diff for Current Function354 47.9% 468 96.3% 1,592 99.5% 768 96.0%
Parent functions
call_user_func0 0.0% 385 52.1% 19 3.9% 8 0.5% -96 -12.0%
dblog_watchdog150 99.3% 352 47.6% 467 96.1% 800 50.0% 368 46.0%
db_merge1 0.7% 5 0.7% 6 1.2% 792 49.5% 480 60.0%
db_query0 0.0% -2 -0.3% -5 -1.0% 0 0.0% 0 0.0%
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%
Child function
Drupal\Core\Database\Database::openConnection0 N/A% 385 52.1% 18 3.7% 8 0.5% 32 4.0%