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

Drupal\Core\Database\Database::getConnectionRun #517c75d3de7c7Run #517c76da9b0d3DiffDiff%
Number of Function Calls160 9 -151 -94.4%
Incl. Wall Time (microsec)1,530 1,227 -303 -19.8%
Incl. Wall Time (microsec) per call 10 136 127 1325.7%
Excl. Wall Time (microsec)371 40 -331 -89.2%
Incl. CPU (microsecs)1,238 760 -478 -38.6%
Incl. CPU (microsecs) per call 8 84 77 991.4%
Excl. CPU (microsec)515 53 -462 -89.7%
Incl. MemUse (bytes)179,752 178,160 -1,592 -0.9%
Incl. MemUse (bytes) per call 1,123 19,796 18,672 1662.0%
Excl. MemUse (bytes)5,728 4,136 -1,592 -27.8%
Incl. PeakMemUse (bytes)177,528 177,000 -528 -0.3%
Incl. PeakMemUse (bytes) per call 1,110 19,667 18,557 1672.5%
Excl. PeakMemUse (bytes)3,552 3,024 -528 -14.9%

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% -303 -0.1% -478 -0.5% -1,592 -0.7% -528 -0.1%
Exclusive Metrics Diff for Current Function-331 -109.2% -462 -96.7% -1,592 -100.0% -528 -100.0%
Parent functions
dblog_watchdog-150 -99.3% -324 -106.9% -456 -95.4% -800 -50.3% 0 0.0%
db_merge-1 -0.7% -5 -1.7% -8 -1.7% -792 -49.7% -480 -90.9%
db_select0 0.0% 0 0.0% -1 -0.2% 0 0.0% -48 -9.1%
db_query_range0 0.0% 0 0.0% 1 0.2% 0 0.0% 0 0.0%
db_query0 0.0% -3 -1.0% 1 0.2% 0 0.0% 0 0.0%
call_user_func0 0.0% 29 9.6% -15 -3.1% 0 0.0% 0 0.0%
Child function
Drupal\Core\Database\Database::openConnection0 N/A% 28 9.2% -16 -3.3% 0 0.0% 0 0.0%