Diff Report
Run #51aad207381a1: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51aad15cb89bb: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51aad207381a1Run #51aad15cb89bbDiffDiff%
Number of Function Calls59 59 0 0.0%
Incl. Wall Time (microsec)25,133 25,685 552 2.2%
Incl. Wall Time (microsec) per call 426 435 9 2.2%
Excl. Wall Time (microsec)1,019 950 -69 -6.8%
Incl. CPU (microsecs)20,150 20,548 398 2.0%
Incl. CPU (microsecs) per call 342 348 7 2.0%
Excl. CPU (microsec)905 847 -58 -6.4%
Incl. MemUse (bytes)2,051,152 2,051,152 0 0.0%
Incl. MemUse (bytes) per call 34,765 34,765 0 0.0%
Excl. MemUse (bytes)-150,464 -150,464 0 0.0%
Incl. PeakMemUse (bytes)2,254,360 2,254,360 0 0.0%
Incl. PeakMemUse (bytes) per call 38,209 38,209 0 0.0%
Excl. PeakMemUse (bytes)3,680 3,680 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% 552 67.1% 398 83.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-69 -12.5% -58 -14.6% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 552 100.0% 398 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 476 86.2% 412 103.5% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 139 25.2% 44 11.1% 0 N/A% 0 N/A%
explode0 N/A% 6 1.1% 0 0.0% 0 N/A% 0 N/A%