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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52c8629919553Run #52c862c126d67DiffDiff%
Number of Function Calls88 88 0 0.0%
Incl. Wall Time (microsec)8,507 8,330 -177 -2.1%
Incl. Wall Time (microsec) per call 97 95 -2 -2.1%
Excl. Wall Time (microsec)877 856 -21 -2.4%
Incl. CPU (microsecs)7,544 7,373 -171 -2.3%
Incl. CPU (microsecs) per call 86 84 -2 -2.3%
Excl. CPU (microsec)837 768 -69 -8.2%
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 Function-21 -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%