Diff Report
Run #51ec3c5ab9ae4: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec3b81ad265: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ec3c5ab9ae4Run #51ec3b81ad265DiffDiff%
Number of Function Calls104 104 0 0.0%
Incl. Wall Time (microsec)10,041 9,919 -122 -1.2%
Incl. Wall Time (microsec) per call 97 95 -1 -1.2%
Excl. Wall Time (microsec)1,321 1,283 -38 -2.9%
Incl. CPU (microsecs)9,437 9,291 -146 -1.5%
Incl. CPU (microsecs) per call 91 89 -1 -1.5%
Excl. CPU (microsec)1,217 1,177 -40 -3.3%
Incl. MemUse (bytes)1,743,584 1,742,816 -768 -0.0%
Incl. MemUse (bytes) per call 16,765 16,758 -7 -0.0%
Excl. MemUse (bytes)-304,048 -303,880 168 0.1%
Incl. PeakMemUse (bytes)2,381,152 2,379,992 -1,160 -0.0%
Incl. PeakMemUse (bytes) per call 22,896 22,885 -11 -0.0%
Excl. PeakMemUse (bytes)8,280 8,304 24 0.3%

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% -122 -32.6% -146 -13.8% -768 -2.1% -1,160 -3.1%
Exclusive Metrics Diff for Current Function-38 -31.1% -40 -27.4% 168 21.9% 24 2.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -122 -100.0% -146 -100.0% -768 -100.0% -1,160 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -46 -37.7% -70 -47.9% 0 0.0% -80 -6.9%
unserialize0 N/A% -31 -25.4% -32 -21.9% -936 -121.9% -1,104 -95.2%
explode0 N/A% -7 -5.7% -4 -2.7% 0 0.0% 0 0.0%