Diff Report
Run #51a944519b58c: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51a9457328375: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51a944519b58cRun #51a9457328375DiffDiff%
Number of Function Calls118 118 0 0.0%
Incl. Wall Time (microsec)25,418 24,942 -476 -1.9%
Incl. Wall Time (microsec) per call 215 211 -4 -1.9%
Excl. Wall Time (microsec)1,598 1,615 17 1.1%
Incl. CPU (microsecs)21,169 20,872 -297 -1.4%
Incl. CPU (microsecs) per call 179 177 -3 -1.4%
Excl. CPU (microsec)1,436 1,448 12 0.8%
Incl. MemUse (bytes)1,702,040 1,702,040 0 0.0%
Incl. MemUse (bytes) per call 14,424 14,424 0 0.0%
Excl. MemUse (bytes)-393,808 -393,808 0 0.0%
Incl. PeakMemUse (bytes)2,312,664 2,312,664 0 0.0%
Incl. PeakMemUse (bytes) per call 19,599 19,599 0 0.0%
Excl. PeakMemUse (bytes)7,264 7,264 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% -476 -55.3% -297 -33.8% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function17 3.6% 12 4.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -476 -100.0% -297 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -245 -51.5% -152 -51.2% 0 N/A% 0 N/A%
unserialize0 N/A% -244 -51.3% -156 -52.5% 0 N/A% 0 N/A%
explode0 N/A% -4 -0.8% -1 -0.3% 0 N/A% 0 N/A%