Diff Report
Run #519c03b86b1ec: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c045f200ea: 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 #519c03b86b1ecRun #519c045f200eaDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)1,051 1,080 29 2.8%
Incl. Wall Time (microsec) per call 150 154 4 2.8%
Excl. Wall Time (microsec)155 154 -1 -0.6%
Incl. CPU (microsecs)929 923 -6 -0.6%
Incl. CPU (microsecs) per call 133 132 -1 -0.6%
Excl. CPU (microsec)142 141 -1 -0.7%
Incl. MemUse (bytes)38,620 38,620 0 0.0%
Incl. MemUse (bytes) per call 5,517 5,517 0 0.0%
Excl. MemUse (bytes)-11,528 -11,528 0 0.0%
Incl. PeakMemUse (bytes)62,092 62,092 0 0.0%
Incl. PeakMemUse (bytes) per call 8,870 8,870 0 0.0%
Excl. PeakMemUse (bytes)568 568 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% 29 1.2% -6 -0.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-1 -3.4% -1 -16.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 29 100.0% -6 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 29 100.0% -6 -100.0% 0 N/A% 0 N/A%
unserialize@10 N/A% 1 3.4% 1 16.7% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%