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\Connection::prepareQuery

Drupal\Core\Database\Connection::prepareQueryRun #517c1c27a12c9Run #517c1bb406b02DiffDiff%
Number of Function Calls98 251 153 156.1%
Incl. Wall Time (microsec)1,988 4,994 3,006 151.2%
Incl. Wall Time (microsec) per call 20 20 -0 -1.9%
Excl. Wall Time (microsec)499 1,201 702 140.7%
Incl. CPU (microsecs)2,072 5,222 3,150 152.0%
Incl. CPU (microsecs) per call 21 21 -0 -1.6%
Excl. CPU (microsec)427 1,028 601 140.7%
Incl. MemUse (bytes)98,696 317,736 219,040 221.9%
Incl. MemUse (bytes) per call 1,007 1,266 259 25.7%
Excl. MemUse (bytes)-13,384 -73,952 -60,568 -452.5%
Incl. PeakMemUse (bytes)34,088 36,664 2,576 7.6%
Incl. PeakMemUse (bytes) per call 348 146 -202 -58.0%
Excl. PeakMemUse (bytes)2,336 2,344 8 0.3%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Connection::prepareQuery [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\Connection::prepareQuery153 33.3% 3,006 1.1% 3,150 2.7% 219,040 49.2% 2,576 0.5%
Exclusive Metrics Diff for Current Function702 23.4% 601 19.1% -60,568 -27.7% 8 0.3%
Parent function
Drupal\Core\Database\Connection::query153 100.0% 3,006 100.0% 3,150 100.0% 219,040 100.0% 2,576 100.0%
Child functions
PDO::prepare153 50.0% 1,318 43.8% 1,419 45.0% 211,696 96.6% 376 14.6%
Drupal\Core\Database\Connection::prefixTables153 50.0% 986 32.8% 1,130 35.9% 67,912 31.0% 2,192 85.1%