Diff Report
Run #52d3e93cb560e: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d3e964b719c: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52d3e93cb560eRun #52d3e964b719cDiffDiff%
Number of Function Calls75 75 0 0.0%
Incl. Wall Time (microsec)7,335 7,467 132 1.8%
Incl. Wall Time (microsec) per call 98 100 2 1.8%
Excl. Wall Time (microsec)739 738 -1 -0.1%
Incl. CPU (microsecs)6,584 6,721 137 2.1%
Incl. CPU (microsecs) per call 88 90 2 2.1%
Excl. CPU (microsec)639 669 30 4.7%
Incl. MemUse (bytes)1,408,592 1,408,592 0 0.0%
Incl. MemUse (bytes) per call 18,781 18,781 0 0.0%
Excl. MemUse (bytes)-211,544 -211,544 0 0.0%
Incl. PeakMemUse (bytes)1,889,776 1,889,776 0 0.0%
Incl. PeakMemUse (bytes) per call 25,197 25,197 0 0.0%
Excl. PeakMemUse (bytes)7,128 7,128 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% 132 44.1% 137 48.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-1 -0.8% 30 21.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 132 100.0% 137 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 87 65.9% 80 58.4% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 46 34.8% 28 20.4% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -1 -0.7% 0 N/A% 0 N/A%