Diff Report
Run #52e6fc5cc809e: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #52e6fcee66138: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52e6fc5cc809eRun #52e6fcee66138DiffDiff%
Number of Function Calls91 91 0 0.0%
Incl. Wall Time (microsec)15,351 15,378 27 0.2%
Incl. Wall Time (microsec) per call 169 169 0 0.2%
Excl. Wall Time (microsec)1,339 1,343 4 0.3%
Incl. CPU (microsecs)15,042 15,011 -31 -0.2%
Incl. CPU (microsecs) per call 165 165 -0 -0.2%
Excl. CPU (microsec)1,242 1,202 -40 -3.2%
Incl. MemUse (bytes)2,343,528 2,344,048 520 0.0%
Incl. MemUse (bytes) per call 25,753 25,759 6 0.0%
Excl. MemUse (bytes)-346,600 -346,792 -192 -0.1%
Incl. PeakMemUse (bytes)2,965,120 2,993,288 28,168 0.9%
Incl. PeakMemUse (bytes) per call 32,584 32,893 310 0.9%
Excl. PeakMemUse (bytes)5,768 5,712 -56 -1.0%

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% 27 1.1% -31 -1.2% 520 0.6% 28,168 31.6%
Exclusive Metrics Diff for Current Function4 14.8% -40 -129.0% -192 -36.9% -56 -0.2%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 27 100.0% -31 -100.0% 520 100.0% 28,168 100.0%
Child functions
unserialize0 N/A% -222 -822.2% -226 -729.0% 736 141.5% 25,160 89.3%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 225 833.3% 217 700.0% 0 0.0% 2,448 8.7%
spl_autoload_call0 N/A% 11 40.7% 10 32.3% -32 -6.2% 536 1.9%
explode0 N/A% 9 33.3% 8 25.8% 8 1.5% 80 0.3%