Diff Report
Run #519eb1c65e7e6: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #519eb193b2faa: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519eb1c65e7e6Run #519eb193b2faaDiffDiff%
Number of Function Calls103 103 0 0.0%
Incl. Wall Time (microsec)24,304 26,001 1,697 7.0%
Incl. Wall Time (microsec) per call 236 252 16 7.0%
Excl. Wall Time (microsec)1,679 1,802 123 7.3%
Incl. CPU (microsecs)19,429 19,950 521 2.7%
Incl. CPU (microsecs) per call 189 194 5 2.7%
Excl. CPU (microsec)1,539 1,664 125 8.1%
Incl. MemUse (bytes)1,968,600 1,968,600 0 0.0%
Incl. MemUse (bytes) per call 19,113 19,113 0 0.0%
Excl. MemUse (bytes)-306,048 -306,048 0 0.0%
Incl. PeakMemUse (bytes)1,990,968 1,990,968 0 0.0%
Incl. PeakMemUse (bytes) per call 19,330 19,330 0 0.0%
Excl. PeakMemUse (bytes)6,176 6,176 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% 1,697 108.6% 521 19.7% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function123 7.2% 125 24.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 1,697 100.0% 521 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 823 48.5% 10 1.9% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 742 43.7% 380 72.9% 0 N/A% 0 N/A%
explode0 N/A% 9 0.5% 6 1.2% 0 N/A% 0 N/A%