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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51c24fd9b971aRun #51c2508074568DiffDiff%
Number of Function Calls73 73 0 0.0%
Incl. Wall Time (microsec)26,785 27,180 395 1.5%
Incl. Wall Time (microsec) per call 367 372 5 1.5%
Excl. Wall Time (microsec)1,768 1,719 -49 -2.8%
Incl. CPU (microsecs)22,331 22,590 259 1.2%
Incl. CPU (microsecs) per call 306 309 4 1.2%
Excl. CPU (microsec)1,670 1,638 -32 -1.9%
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 Function-49 -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%