Diff Report
Run #51ec243650361: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec227a9cea0: 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 #51ec243650361Run #51ec227a9cea0DiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)868 846 -22 -2.5%
Incl. Wall Time (microsec) per call 96 94 -2 -2.5%
Excl. Wall Time (microsec)117 108 -9 -7.7%
Incl. CPU (microsecs)756 783 27 3.6%
Incl. CPU (microsecs) per call 84 87 3 3.6%
Excl. CPU (microsec)110 98 -12 -10.9%
Incl. MemUse (bytes)82,288 82,288 0 0.0%
Incl. MemUse (bytes) per call 9,143 9,143 0 0.0%
Excl. MemUse (bytes)-13,800 -13,800 0 0.0%
Incl. PeakMemUse (bytes)98,352 98,344 -8 -0.0%
Incl. PeakMemUse (bytes) per call 10,928 10,927 -1 -0.0%
Excl. PeakMemUse (bytes)1,472 1,536 64 4.3%

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% -22 -0.3% 27 0.4% 0 0.0% -8 -0.0%
Exclusive Metrics Diff for Current Function-9 -40.9% -12 -44.4% 0 N/A% 64 800.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -22 -100.0% 27 100.0% 0 N/A% -8 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -33 -150.0% 22 81.5% 0 N/A% -16 -200.0%
unserialize@10 N/A% 20 90.9% 18 66.7% 0 N/A% -56 -700.0%
explode0 N/A% 0 0.0% -1 -3.7% 0 N/A% 0 0.0%