Diff Report
Run #519e633ddef65: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519e62c02d767: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519e633ddef65Run #519e62c02d767DiffDiff%
Number of Function Calls115 115 0 0.0%
Incl. Wall Time (microsec)21,350 21,370 20 0.1%
Incl. Wall Time (microsec) per call 186 186 0 0.1%
Excl. Wall Time (microsec)1,493 1,483 -10 -0.7%
Incl. CPU (microsecs)19,747 19,633 -114 -0.6%
Incl. CPU (microsecs) per call 172 171 -1 -0.6%
Excl. CPU (microsec)1,366 1,340 -26 -1.9%
Incl. MemUse (bytes)1,953,712 1,953,712 0 0.0%
Incl. MemUse (bytes) per call 16,989 16,989 0 0.0%
Excl. MemUse (bytes)-354,648 -354,648 0 0.0%
Incl. PeakMemUse (bytes)2,011,488 2,011,488 0 0.0%
Incl. PeakMemUse (bytes) per call 17,491 17,491 0 0.0%
Excl. PeakMemUse (bytes)6,040 6,040 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% 20 5.1% -114 -18.4% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-10 -50.0% -26 -22.8% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 20 100.0% -114 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 208 1040.0% 44 38.6% 0 N/A% 0 N/A%
unserialize0 N/A% -178 -890.0% -130 -114.0% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -2 -1.8% 0 N/A% 0 N/A%