Diff Report
Run #51c2508074568: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51c24fd9b971a: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51c2508074568Run #51c24fd9b971aDiffDiff%
Number of Function Calls73 73 0 0.0%
Incl. Wall Time (microsec)27,180 26,785 -395 -1.5%
Incl. Wall Time (microsec) per call 372 367 -5 -1.5%
Excl. Wall Time (microsec)1,719 1,768 49 2.9%
Incl. CPU (microsecs)22,590 22,331 -259 -1.1%
Incl. CPU (microsecs) per call 309 306 -4 -1.1%
Excl. CPU (microsec)1,638 1,670 32 2.0%
Incl. MemUse (bytes)1,733,880 1,733,880 0 0.0%
Incl. MemUse (bytes) per call 23,752 23,752 0 0.0%
Excl. MemUse (bytes)-198,912 -198,912 0 0.0%
Incl. PeakMemUse (bytes)1,881,704 1,881,704 0 0.0%
Incl. PeakMemUse (bytes) per call 25,777 25,777 0 0.0%
Excl. PeakMemUse (bytes)6,544 6,544 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% -395 -38.7% -259 -14.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function49 12.4% 32 12.4% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -395 -100.0% -259 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -347 -87.8% -158 -61.0% 0 N/A% 0 N/A%
unserialize0 N/A% -96 -24.3% -134 -51.7% 0 N/A% 0 N/A%
explode0 N/A% -1 -0.3% 1 0.4% 0 N/A% 0 N/A%