Diff Report
Run #51ec3b81ad265: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec3c1813b11: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ec3b81ad265Run #51ec3c1813b11DiffDiff%
Number of Function Calls104 104 0 0.0%
Incl. Wall Time (microsec)9,919 9,724 -195 -2.0%
Incl. Wall Time (microsec) per call 95 94 -2 -2.0%
Excl. Wall Time (microsec)1,283 1,284 1 0.1%
Incl. CPU (microsecs)9,291 9,253 -38 -0.4%
Incl. CPU (microsecs) per call 89 89 -0 -0.4%
Excl. CPU (microsec)1,177 1,173 -4 -0.3%
Incl. MemUse (bytes)1,742,816 1,742,816 0 0.0%
Incl. MemUse (bytes) per call 16,758 16,758 0 0.0%
Excl. MemUse (bytes)-303,880 -303,880 0 0.0%
Incl. PeakMemUse (bytes)2,379,992 2,379,992 0 0.0%
Incl. PeakMemUse (bytes) per call 22,885 22,885 0 0.0%
Excl. PeakMemUse (bytes)8,304 8,304 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% -195 -7.9% -38 -5.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function1 0.5% -4 -10.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -195 -100.0% -38 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -110 -56.4% -81 -213.2% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -86 -44.1% 45 118.4% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 2 5.3% 0 N/A% 0 N/A%