Diff Report
Run #519d9cf28420e: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d9d52c2102: 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 #519d9cf28420eRun #519d9d52c2102DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)630 693 63 10.0%
Incl. Wall Time (microsec) per call 90 99 9 10.0%
Excl. Wall Time (microsec)105 128 23 21.9%
Incl. CPU (microsecs)584 597 13 2.2%
Incl. CPU (microsecs) per call 83 85 2 2.2%
Excl. CPU (microsec)95 118 23 24.2%
Incl. MemUse (bytes)78,096 78,096 0 0.0%
Incl. MemUse (bytes) per call 11,157 11,157 0 0.0%
Excl. MemUse (bytes)-11,416 -11,416 0 0.0%
Incl. PeakMemUse (bytes)98,072 98,072 0 0.0%
Incl. PeakMemUse (bytes) per call 14,010 14,010 0 0.0%
Excl. PeakMemUse (bytes)696 696 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% 63 28.5% 13 0.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function23 36.5% 23 176.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 63 100.0% 13 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 32 50.8% -19 -146.2% 0 N/A% 0 N/A%
unserialize@10 N/A% 8 12.7% 9 69.2% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%