Diff Report
Run #5198f7eab7067: XHProf Run (Namespace=drupal-perf-steveoliver)
vs.
Run #5198fa286ed27: XHProf Run (Namespace=drupal-perf-steveoliver)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5198f7eab7067Run #5198fa286ed27DiffDiff%
Number of Function Calls126 126 0 0.0%
Incl. Wall Time (microsec)70,212 69,413 -799 -1.1%
Incl. Wall Time (microsec) per call 557 551 -6 -1.1%
Excl. Wall Time (microsec)3,759 3,740 -19 -0.5%
Incl. CPU (microsecs)48,002 48,003 1 0.0%
Incl. CPU (microsecs) per call 381 381 0 0.0%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)3,644,344 3,644,408 64 0.0%
Incl. MemUse (bytes) per call 28,923 28,924 1 0.0%
Excl. MemUse (bytes)-383,952 -383,992 -40 -0.0%
Incl. PeakMemUse (bytes)4,278,864 4,280,856 1,992 0.0%
Incl. PeakMemUse (bytes) per call 33,959 33,975 16 0.0%
Excl. PeakMemUse (bytes)11,912 12,056 144 1.2%

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% -799 -2.1% 1 0.0% 64 0.5% 1,992 15.0%
Exclusive Metrics Diff for Current Function-19 -2.4% 0 0.0% -40 -62.5% 144 7.2%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -799 -100.0% 1 100.0% 64 100.0% 1,992 100.0%
Child functions
unserialize0 N/A% -616 -77.1% 1 100.0% 72 112.5% 1,384 69.5%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -164 -20.5% 0 0.0% 32 50.0% 464 23.3%
explode0 N/A% 0 0.0% 0 0.0% 0 0.0% 0 0.0%