Diff Report
Run #519fe8e1e5eca: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fe7ae1f6cc: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519fe8e1e5ecaRun #519fe7ae1f6ccDiffDiff%
Number of Function Calls54 54 0 0.0%
Incl. Wall Time (microsec)8,092 7,944 -148 -1.8%
Incl. Wall Time (microsec) per call 150 147 -3 -1.8%
Excl. Wall Time (microsec)959 951 -8 -0.8%
Incl. CPU (microsecs)7,304 7,128 -176 -2.4%
Incl. CPU (microsecs) per call 135 132 -3 -2.4%
Excl. CPU (microsec)889 868 -21 -2.4%
Incl. MemUse (bytes)752,224 752,296 72 0.0%
Incl. MemUse (bytes) per call 13,930 13,931 1 0.0%
Excl. MemUse (bytes)-119,568 -119,568 0 0.0%
Incl. PeakMemUse (bytes)1,108,024 1,107,872 -152 -0.0%
Incl. PeakMemUse (bytes) per call 20,519 20,516 -3 -0.0%
Excl. PeakMemUse (bytes)4,584 4,584 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% -148 -54.0% -176 -67.7% 72 450.0% -152 -237.5%
Exclusive Metrics Diff for Current Function-8 -5.4% -21 -11.9% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -148 -100.0% -176 -100.0% 72 100.0% -152 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -75 -50.7% -84 -47.7% 0 0.0% 0 0.0%
unserialize0 N/A% -65 -43.9% -66 -37.5% 72 100.0% -152 -100.0%
explode0 N/A% 0 0.0% -5 -2.8% 0 0.0% 0 0.0%