Diff Report
Run #51b0309e0d24b: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51b0311a4e34a: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51b0309e0d24bRun #51b0311a4e34aDiffDiff%
Number of Function Calls85 85 0 0.0%
Incl. Wall Time (microsec)22,185 22,730 545 2.5%
Incl. Wall Time (microsec) per call 261 267 6 2.5%
Excl. Wall Time (microsec)1,599 1,633 34 2.1%
Incl. CPU (microsecs)17,249 17,298 49 0.3%
Incl. CPU (microsecs) per call 203 204 1 0.3%
Excl. CPU (microsec)1,464 1,513 49 3.3%
Incl. MemUse (bytes)1,751,888 1,751,888 0 0.0%
Incl. MemUse (bytes) per call 20,610 20,610 0 0.0%
Excl. MemUse (bytes)-227,424 -227,424 0 0.0%
Incl. PeakMemUse (bytes)1,688,136 1,688,136 0 0.0%
Incl. PeakMemUse (bytes) per call 19,860 19,860 0 0.0%
Excl. PeakMemUse (bytes)3,592 3,592 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% 545 89.5% 49 4.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function34 6.2% 49 100.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 545 100.0% 49 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 361 66.2% 34 69.4% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 165 30.3% -13 -26.5% 0 N/A% 0 N/A%
explode0 N/A% -15 -2.8% -21 -42.9% 0 N/A% 0 N/A%