Diff Report
Run #517d7587ada9c: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d750163e11: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #517d7587ada9cRun #517d750163e11DiffDiff%
Number of Function Calls58 58 0 0.0%
Incl. Wall Time (microsec)22,591 22,933 342 1.5%
Incl. Wall Time (microsec) per call 390 395 6 1.5%
Excl. Wall Time (microsec)839 864 25 3.0%
Incl. CPU (microsecs)18,844 18,652 -192 -1.0%
Incl. CPU (microsecs) per call 325 322 -3 -1.0%
Excl. CPU (microsec)768 790 22 2.9%
Incl. MemUse (bytes)1,459,992 1,459,904 -88 -0.0%
Incl. MemUse (bytes) per call 25,172 25,171 -2 -0.0%
Excl. MemUse (bytes)-163,648 -163,600 48 0.0%
Incl. PeakMemUse (bytes)1,921,264 1,918,512 -2,752 -0.1%
Incl. PeakMemUse (bytes) per call 33,125 33,078 -47 -0.1%
Excl. PeakMemUse (bytes)5,992 6,080 88 1.5%

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% 342 4.2% -192 -2.0% -88 -0.8% -2,752 -24.9%
Exclusive Metrics Diff for Current Function25 7.3% 22 11.5% 48 54.5% 88 3.2%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 342 100.0% -192 -100.0% -88 -100.0% -2,752 -100.0%
Child functions
unserialize0 N/A% 499 145.9% -166 -86.5% -168 -190.9% -2,632 -95.6%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -184 -53.8% -50 -26.0% 40 45.5% -208 -7.6%
explode0 N/A% 2 0.6% 2 1.0% -8 -9.1% 0 0.0%