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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5198fa286ed27Run #5198f7eab7067DiffDiff%
Number of Function Calls126 126 0 0.0%
Incl. Wall Time (microsec)69,413 70,212 799 1.2%
Incl. Wall Time (microsec) per call 551 557 6 1.2%
Excl. Wall Time (microsec)3,740 3,759 19 0.5%
Incl. CPU (microsecs)48,003 48,002 -1 -0.0%
Incl. CPU (microsecs) per call 381 381 -0 -0.0%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)3,644,408 3,644,344 -64 -0.0%
Incl. MemUse (bytes) per call 28,924 28,923 -1 -0.0%
Excl. MemUse (bytes)-383,992 -383,952 40 0.0%
Incl. PeakMemUse (bytes)4,280,856 4,278,864 -1,992 -0.0%
Incl. PeakMemUse (bytes) per call 33,975 33,959 -16 -0.0%
Excl. PeakMemUse (bytes)12,056 11,912 -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 Function19 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%