Diff Report
Run #519ff693b4ca2: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519ff7de62889: 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 #519ff693b4ca2Run #519ff7de62889DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)850 872 22 2.6%
Incl. Wall Time (microsec) per call 121 125 3 2.6%
Excl. Wall Time (microsec)124 126 2 1.6%
Incl. CPU (microsecs)835 854 19 2.3%
Incl. CPU (microsecs) per call 119 122 3 2.3%
Excl. CPU (microsec)117 113 -4 -3.4%
Incl. MemUse (bytes)75,816 75,816 0 0.0%
Incl. MemUse (bytes) per call 10,831 10,831 0 0.0%
Excl. MemUse (bytes)-11,728 -11,728 0 0.0%
Incl. PeakMemUse (bytes)67,280 67,384 104 0.2%
Incl. PeakMemUse (bytes) per call 9,611 9,626 15 0.2%
Excl. PeakMemUse (bytes)1,680 1,680 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% 22 1.9% 19 1.6% 0 0.0% 104 0.1%
Exclusive Metrics Diff for Current Function2 9.1% -4 -21.1% 0 N/A% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 22 100.0% 19 100.0% 0 N/A% 104 100.0%
Child functions
unserialize@10 N/A% 24 109.1% 24 126.3% 0 N/A% 104 100.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -4 -18.2% -1 -5.3% 0 N/A% 0 0.0%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 0.0%