Diff Report
Run #51ec227a9cea0: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec2301b5aa5: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ec227a9cea0Run #51ec2301b5aa5DiffDiff%
Number of Function Calls136 136 0 0.0%
Incl. Wall Time (microsec)18,383 18,107 -276 -1.5%
Incl. Wall Time (microsec) per call 135 133 -2 -1.5%
Excl. Wall Time (microsec)1,698 1,633 -65 -3.8%
Incl. CPU (microsecs)17,307 16,892 -415 -2.4%
Incl. CPU (microsecs) per call 127 124 -3 -2.4%
Excl. CPU (microsec)1,569 1,478 -91 -5.8%
Incl. MemUse (bytes)2,327,064 2,327,064 0 0.0%
Incl. MemUse (bytes) per call 17,111 17,111 0 0.0%
Excl. MemUse (bytes)-469,472 -469,472 0 0.0%
Incl. PeakMemUse (bytes)3,054,488 3,054,488 0 0.0%
Incl. PeakMemUse (bytes) per call 22,459 22,459 0 0.0%
Excl. PeakMemUse (bytes)9,080 9,080 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% -276 -10.1% -415 -7.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-65 -23.6% -91 -21.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -276 -100.0% -415 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -131 -47.5% -257 -61.9% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -83 -30.1% -68 -16.4% 0 N/A% 0 N/A%
explode0 N/A% 3 1.1% 1 0.2% 0 N/A% 0 N/A%