Diff Report
Run #51ec5cfb002ea: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec5ca916d7d: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #51ec5cfb002eaRun #51ec5ca916d7dDiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)857 822 -35 -4.1%
Incl. Wall Time (microsec) per call 95 91 -4 -4.1%
Excl. Wall Time (microsec)107 110 3 2.8%
Incl. CPU (microsecs)738 751 13 1.8%
Incl. CPU (microsecs) per call 82 83 1 1.8%
Excl. CPU (microsec)102 92 -10 -9.8%
Incl. MemUse (bytes)82,304 82,304 0 0.0%
Incl. MemUse (bytes) per call 9,145 9,145 0 0.0%
Excl. MemUse (bytes)-13,784 -13,784 0 0.0%
Incl. PeakMemUse (bytes)98,720 98,720 0 0.0%
Incl. PeakMemUse (bytes) per call 10,969 10,969 0 0.0%
Excl. PeakMemUse (bytes)1,472 1,472 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem@1 [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::prepareItem@10 N/A% -35 -2.2% 13 13.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function3 8.6% -10 -76.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -35 -100.0% 13 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -51 -145.7% 7 53.8% 0 N/A% 0 N/A%
unserialize@10 N/A% 13 37.1% 16 123.1% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%