Diff Report
Run #519d9d94433aa: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519d9cf28420e: 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 #519d9d94433aaRun #519d9cf28420eDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)726 630 -96 -13.2%
Incl. Wall Time (microsec) per call 104 90 -14 -13.2%
Excl. Wall Time (microsec)121 105 -16 -13.2%
Incl. CPU (microsecs)585 584 -1 -0.2%
Incl. CPU (microsecs) per call 84 83 -0 -0.2%
Excl. CPU (microsec)114 95 -19 -16.7%
Incl. MemUse (bytes)78,104 78,096 -8 -0.0%
Incl. MemUse (bytes) per call 11,158 11,157 -1 -0.0%
Excl. MemUse (bytes)-11,416 -11,416 0 0.0%
Incl. PeakMemUse (bytes)97,864 98,072 208 0.2%
Incl. PeakMemUse (bytes) per call 13,981 14,010 30 0.2%
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% -96 -3.8% -1 -0.1% -8 -0.0% 208 0.3%
Exclusive Metrics Diff for Current Function-16 -16.7% -19 -1900.0% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -96 -100.0% -1 -100.0% -8 -100.0% 208 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -80 -83.3% 18 1800.0% 0 0.0% -32 -15.4%
explode0 N/A% 0 0.0% 1 100.0% 0 0.0% 0 0.0%
unserialize@10 N/A% 0 0.0% -1 -100.0% -8 -100.0% 240 115.4%