Diff Report
Run #51ad01387670b: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51ad018db619c: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ad01387670bRun #51ad018db619cDiffDiff%
Number of Function Calls71 71 0 0.0%
Incl. Wall Time (microsec)22,858 22,781 -77 -0.3%
Incl. Wall Time (microsec) per call 322 321 -1 -0.3%
Excl. Wall Time (microsec)1,139 1,207 68 6.0%
Incl. CPU (microsecs)18,431 18,471 40 0.2%
Incl. CPU (microsecs) per call 260 260 1 0.2%
Excl. CPU (microsec)1,028 1,100 72 7.0%
Incl. MemUse (bytes)1,720,720 1,720,720 0 0.0%
Incl. MemUse (bytes) per call 24,235 24,235 0 0.0%
Excl. MemUse (bytes)-189,416 -189,416 0 0.0%
Incl. PeakMemUse (bytes)2,001,568 2,001,568 0 0.0%
Incl. PeakMemUse (bytes) per call 28,191 28,191 0 0.0%
Excl. PeakMemUse (bytes)4,040 4,040 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% -77 -22.5% 40 3.5% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function68 88.3% 72 180.0% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -77 -100.0% 40 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -83 -107.8% -160 -400.0% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -79 -102.6% 110 275.0% 0 N/A% 0 N/A%
explode0 N/A% 17 22.1% 18 45.0% 0 N/A% 0 N/A%