Diff Report
Run #5198f7eab7067: XHProf Run (Namespace=drupal-perf-steveoliver)
vs.
Run #5198f92a4c3fa: 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 #5198f92a4c3faDiffDiff%
Number of Function Calls126 126 0 0.0%
Incl. Wall Time (microsec)70,212 69,628 -584 -0.8%
Incl. Wall Time (microsec) per call 557 553 -5 -0.8%
Excl. Wall Time (microsec)3,759 3,769 10 0.3%
Incl. CPU (microsecs)48,002 52,003 4,001 8.3%
Incl. CPU (microsecs) per call 381 413 32 8.3%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)3,644,344 3,644,344 0 0.0%
Incl. MemUse (bytes) per call 28,923 28,923 0 0.0%
Excl. MemUse (bytes)-383,952 -383,952 0 0.0%
Incl. PeakMemUse (bytes)4,278,864 4,278,864 0 0.0%
Incl. PeakMemUse (bytes) per call 33,959 33,959 0 0.0%
Excl. PeakMemUse (bytes)11,912 11,912 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% -584 -57.7% 4,001 N/A% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function10 1.7% 0 0.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -584 -100.0% 4,001 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -488 -83.6% 1 0.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -106 -18.2% 4,000 100.0% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%