Diff Report
Run #519af56893788: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519af3b0bf970: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519af56893788Run #519af3b0bf970DiffDiff%
Number of Function Calls102 102 0 0.0%
Incl. Wall Time (microsec)21,563 22,394 831 3.9%
Incl. Wall Time (microsec) per call 211 220 8 3.9%
Excl. Wall Time (microsec)1,298 1,372 74 5.7%
Incl. CPU (microsecs)19,128 19,910 782 4.1%
Incl. CPU (microsecs) per call 188 195 8 4.1%
Excl. CPU (microsec)1,192 1,233 41 3.4%
Incl. MemUse (bytes)1,984,736 1,984,848 112 0.0%
Incl. MemUse (bytes) per call 19,458 19,459 1 0.0%
Excl. MemUse (bytes)-292,672 -292,704 -32 -0.0%
Incl. PeakMemUse (bytes)2,078,832 2,078,344 -488 -0.0%
Incl. PeakMemUse (bytes) per call 20,381 20,376 -5 -0.0%
Excl. PeakMemUse (bytes)4,472 4,472 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% 831 150.5% 782 165.3% 112 0.2% -488 -0.8%
Exclusive Metrics Diff for Current Function74 8.9% 41 5.2% -32 -28.6% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 831 100.0% 782 100.0% 112 100.0% -488 -100.0%
Child functions
unserialize0 N/A% 611 73.5% 605 77.4% 128 114.3% -616 -126.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 145 17.4% 126 16.1% 16 14.3% 128 26.2%
explode0 N/A% 1 0.1% 10 1.3% 0 0.0% 0 0.0%