Diff Report
Run #517c76da9b0d3: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c75d3de7c7: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Database\Database::getConnection

Drupal\Core\Database\Database::getConnectionRun #517c76da9b0d3Run #517c75d3de7c7DiffDiff%
Number of Function Calls9 160 151 1677.8%
Incl. Wall Time (microsec)1,227 1,530 303 24.7%
Incl. Wall Time (microsec) per call 136 10 -127 -93.0%
Excl. Wall Time (microsec)40 371 331 827.5%
Incl. CPU (microsecs)760 1,238 478 62.9%
Incl. CPU (microsecs) per call 84 8 -77 -90.8%
Excl. CPU (microsec)53 515 462 871.7%
Incl. MemUse (bytes)178,160 179,752 1,592 0.9%
Incl. MemUse (bytes) per call 19,796 1,123 -18,672 -94.3%
Excl. MemUse (bytes)4,136 5,728 1,592 38.5%
Incl. PeakMemUse (bytes)177,000 177,528 528 0.3%
Incl. PeakMemUse (bytes) per call 19,667 1,110 -18,557 -94.4%
Excl. PeakMemUse (bytes)3,024 3,552 528 17.5%

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% 303 0.1% 478 0.5% 1,592 0.7% 528 0.1%
Exclusive Metrics Diff for Current Function331 109.2% 462 96.7% 1,592 100.0% 528 100.0%
Parent functions
dblog_watchdog150 99.3% 324 106.9% 456 95.4% 800 50.3% 0 0.0%
call_user_func0 0.0% -29 -9.6% 15 3.1% 0 0.0% 0 0.0%
db_merge1 0.7% 5 1.7% 8 1.7% 792 49.7% 480 90.9%
db_query0 0.0% 3 1.0% -1 -0.2% 0 0.0% 0 0.0%
db_query_range0 0.0% 0 0.0% -1 -0.2% 0 0.0% 0 0.0%
db_select0 0.0% 0 0.0% 1 0.2% 0 0.0% 48 9.1%
Child function
Drupal\Core\Database\Database::openConnection0 N/A% -28 -9.2% 16 3.3% 0 0.0% 0 0.0%