Diff Report
Run #51aaed63de9a0: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51aaed0fcbd4e: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51aaed63de9a0Run #51aaed0fcbd4eDiffDiff%
Number of Function Calls59 59 0 0.0%
Incl. Wall Time (microsec)25,524 24,900 -624 -2.4%
Incl. Wall Time (microsec) per call 433 422 -11 -2.4%
Excl. Wall Time (microsec)977 958 -19 -1.9%
Incl. CPU (microsecs)20,576 20,365 -211 -1.0%
Incl. CPU (microsecs) per call 349 345 -4 -1.0%
Excl. CPU (microsec)861 840 -21 -2.4%
Incl. MemUse (bytes)2,051,152 2,051,152 0 0.0%
Incl. MemUse (bytes) per call 34,765 34,765 0 0.0%
Excl. MemUse (bytes)-150,464 -150,464 0 0.0%
Incl. PeakMemUse (bytes)2,254,360 2,254,360 0 0.0%
Incl. PeakMemUse (bytes) per call 38,209 38,209 0 0.0%
Excl. PeakMemUse (bytes)3,680 3,680 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% -624 -106.5% -211 -127.9% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-19 -3.0% -21 -10.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -624 -100.0% -211 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -505 -80.9% -176 -83.4% 0 N/A% 0 N/A%
unserialize0 N/A% -98 -15.7% -14 -6.6% 0 N/A% 0 N/A%
explode0 N/A% -2 -0.3% 0 0.0% 0 N/A% 0 N/A%