Diff Report
Run #517d52b5a5611: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d51ae434de: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #517d52b5a5611Run #517d51ae434deDiffDiff%
Number of Function Calls58 58 0 0.0%
Incl. Wall Time (microsec)22,640 22,758 118 0.5%
Incl. Wall Time (microsec) per call 390 392 2 0.5%
Excl. Wall Time (microsec)829 847 18 2.2%
Incl. CPU (microsecs)18,643 18,664 21 0.1%
Incl. CPU (microsecs) per call 321 322 0 0.1%
Excl. CPU (microsec)756 778 22 2.9%
Incl. MemUse (bytes)1,458,696 1,459,880 1,184 0.1%
Incl. MemUse (bytes) per call 25,150 25,170 20 0.1%
Excl. MemUse (bytes)-163,464 -163,600 -136 -0.1%
Incl. PeakMemUse (bytes)1,919,624 1,918,384 -1,240 -0.1%
Incl. PeakMemUse (bytes) per call 33,097 33,076 -21 -0.1%
Excl. PeakMemUse (bytes)6,000 6,080 80 1.3%

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% 118 4.9% 21 1.5% 1,184 11.5% -1,240 -12.1%
Exclusive Metrics Diff for Current Function18 15.3% 22 104.8% -136 -11.5% 80 6.5%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 118 100.0% 21 100.0% 1,184 100.0% -1,240 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 260 220.3% 81 385.7% 8 0.7% -264 -21.3%
unserialize0 N/A% -161 -136.4% -85 -404.8% 1,336 112.8% -1,056 -85.2%
explode0 N/A% 1 0.8% 3 14.3% -24 -2.0% 0 0.0%