Diff Report
Run #52c862c126d67: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c8629919553: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52c862c126d67Run #52c8629919553DiffDiff%
Number of Function Calls88 88 0 0.0%
Incl. Wall Time (microsec)8,330 8,507 177 2.1%
Incl. Wall Time (microsec) per call 95 97 2 2.1%
Excl. Wall Time (microsec)856 877 21 2.5%
Incl. CPU (microsecs)7,373 7,544 171 2.3%
Incl. CPU (microsecs) per call 84 86 2 2.3%
Excl. CPU (microsec)768 837 69 9.0%
Incl. MemUse (bytes)1,695,816 1,695,816 0 0.0%
Incl. MemUse (bytes) per call 19,271 19,271 0 0.0%
Excl. MemUse (bytes)-281,104 -281,104 0 0.0%
Incl. PeakMemUse (bytes)1,967,608 1,967,608 0 0.0%
Incl. PeakMemUse (bytes) per call 22,359 22,359 0 0.0%
Excl. PeakMemUse (bytes)6,848 6,848 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem [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\Cache\DatabaseBackend::prepareItem0 N/A% 177 27.5% 171 22.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function21 11.9% 69 40.4% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 177 100.0% 171 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 95 53.7% 78 45.6% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 61 34.5% 27 15.8% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -3 -1.8% 0 N/A% 0 N/A%