Diff Report
Run #5196ef15c751e: XHProf Run (Namespace=drupal-perf-steveoliver)
vs.
Run #5196effcededb: XHProf Run (Namespace=drupal-perf-steveoliver)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5196ef15c751eRun #5196effcededbDiffDiff%
Number of Function Calls119 119 0 0.0%
Incl. Wall Time (microsec)212,525 131,582 -80,943 -38.1%
Incl. Wall Time (microsec) per call 1,786 1,106 -680 -38.1%
Excl. Wall Time (microsec)10,754 6,686 -4,068 -37.8%
Incl. CPU (microsecs)48,002 48,002 0 0.0%
Incl. CPU (microsecs) per call 403 403 0 0.0%
Excl. CPU (microsec)0 4,000 4,000 N/A%
Incl. MemUse (bytes)2,976,720 2,976,720 0 0.0%
Incl. MemUse (bytes) per call 25,014 25,014 0 0.0%
Excl. MemUse (bytes)-227,592 -227,592 0 0.0%
Incl. PeakMemUse (bytes)3,411,912 3,411,912 0 0.0%
Incl. PeakMemUse (bytes) per call 28,672 28,672 0 0.0%
Excl. PeakMemUse (bytes)10,400 10,400 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% -80,943 -6.8% 0 0.0% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-4,068 -5.0% 4,000 N/A% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -80,943 -100.0% 0 N/A% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -65,565 -81.0% -4,000 N/A% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -11,160 -13.8% 0 N/A% 0 N/A% 0 N/A%
explode0 N/A% -150 -0.2% 0 N/A% 0 N/A% 0 N/A%