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 db_merge

db_mergeRun #517c75d3de7c7Run #517c76da9b0d3DiffDiff%
Number of Function Calls1 -1 -100.0%
Incl. Wall Time (microsec)250 -250 -100.0%
Incl. Wall Time (microsec) per call 250 N/A -250 -100.0%
Excl. Wall Time (microsec)15 -15 -100.0%
Incl. CPU (microsecs)251 -251 -100.0%
Incl. CPU (microsecs) per call 251 N/A -251 -100.0%
Excl. CPU (microsec)9 -9 -100.0%
Incl. MemUse (bytes)56,632 -56,632 -100.0%
Incl. MemUse (bytes) per call 56,632 N/A -56,632 -100.0%
Excl. MemUse (bytes)1,448 -1,448 -100.0%
Incl. PeakMemUse (bytes)34,912 -34,912 -100.0%
Incl. PeakMemUse (bytes) per call 34,912 N/A -34,912 -100.0%
Excl. PeakMemUse (bytes)1,104 -1,104 -100.0%

Parent/Child Regression/Improvement report for db_merge [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
db_merge-1 -33.3% -250 -0.1% -251 -0.3% -56,632 -23.3% -34,912 -9.9%
Exclusive Metrics Diff for Current Function-15 -6.0% -9 -3.6% -1,448 -2.6% -1,104 -3.2%
Parent function
_drupal_session_write-1 -100.0% -250 -100.0% -251 -100.0% -56,632 -100.0% -34,912 -100.0%
Child functions
Drupal\Core\Database\Connection::merge-1 -50.0% -230 -92.0% -234 -93.2% -54,392 -96.0% -33,328 -95.5%
Drupal\Core\Database\Database::getConnection-1 -50.0% -5 -2.0% -8 -3.2% -792 -1.4% -480 -1.4%