Diff Report
Run #519c60f26cf68: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c619634b1e: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519c60f26cf68Run #519c619634b1eDiffDiff%
Number of Function Calls113 113 0 0.0%
Incl. Wall Time (microsec)20,822 20,813 -9 -0.0%
Incl. Wall Time (microsec) per call 184 184 -0 -0.0%
Excl. Wall Time (microsec)2,316 2,343 27 1.2%
Incl. CPU (microsecs)18,326 18,107 -219 -1.2%
Incl. CPU (microsecs) per call 162 160 -2 -1.2%
Excl. CPU (microsec)2,151 2,165 14 0.7%
Incl. MemUse (bytes)1,012,664 1,012,664 0 0.0%
Incl. MemUse (bytes) per call 8,962 8,962 0 0.0%
Excl. MemUse (bytes)-344,668 -344,668 0 0.0%
Incl. PeakMemUse (bytes)1,456,020 1,456,020 0 0.0%
Incl. PeakMemUse (bytes) per call 12,885 12,885 0 0.0%
Excl. PeakMemUse (bytes)5,944 5,944 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem [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::prepareItem0 N/A% -9 -0.5% -219 -7.7% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function27 300.0% 14 6.4% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -9 -100.0% -219 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -137 -1522.2% -131 -59.8% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 101 1122.2% -98 -44.7% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -4 -1.8% 0 N/A% 0 N/A%