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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519e62c02d767Run #519e633ddef65DiffDiff%
Number of Function Calls115 115 0 0.0%
Incl. Wall Time (microsec)21,370 21,350 -20 -0.1%
Incl. Wall Time (microsec) per call 186 186 -0 -0.1%
Excl. Wall Time (microsec)1,483 1,493 10 0.7%
Incl. CPU (microsecs)19,633 19,747 114 0.6%
Incl. CPU (microsecs) per call 171 172 1 0.6%
Excl. CPU (microsec)1,340 1,366 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 Function10 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%