Diff Report
Run #52e49acfb0eb8: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e49b28a90e1: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52e49acfb0eb8Run #52e49b28a90e1DiffDiff%
Number of Function Calls69 69 0 0.0%
Incl. Wall Time (microsec)7,995 7,947 -48 -0.6%
Incl. Wall Time (microsec) per call 116 115 -1 -0.6%
Excl. Wall Time (microsec)765 753 -12 -1.6%
Incl. CPU (microsecs)7,080 7,035 -45 -0.6%
Incl. CPU (microsecs) per call 103 102 -1 -0.6%
Excl. CPU (microsec)692 663 -29 -4.2%
Incl. MemUse (bytes)1,388,488 1,388,488 0 0.0%
Incl. MemUse (bytes) per call 20,123 20,123 0 0.0%
Excl. MemUse (bytes)-202,984 -202,984 0 0.0%
Incl. PeakMemUse (bytes)1,865,696 1,865,696 0 0.0%
Incl. PeakMemUse (bytes) per call 27,039 27,039 0 0.0%
Excl. PeakMemUse (bytes)7,312 7,312 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% -48 -16.8% -45 -10.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-12 -25.0% -29 -64.4% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -48 -100.0% -45 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -37 -77.1% -24 -53.3% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 2 4.2% 13 28.9% 0 N/A% 0 N/A%
explode0 N/A% -1 -2.1% -5 -11.1% 0 N/A% 0 N/A%