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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52e6fcee66138Run #52e6fc5cc809eDiffDiff%
Number of Function Calls91 91 0 0.0%
Incl. Wall Time (microsec)15,378 15,351 -27 -0.2%
Incl. Wall Time (microsec) per call 169 169 -0 -0.2%
Excl. Wall Time (microsec)1,343 1,339 -4 -0.3%
Incl. CPU (microsecs)15,011 15,042 31 0.2%
Incl. CPU (microsecs) per call 165 165 0 0.2%
Excl. CPU (microsec)1,202 1,242 40 3.3%
Incl. MemUse (bytes)2,344,048 2,343,528 -520 -0.0%
Incl. MemUse (bytes) per call 25,759 25,753 -6 -0.0%
Excl. MemUse (bytes)-346,792 -346,600 192 0.1%
Incl. PeakMemUse (bytes)2,993,288 2,965,120 -28,168 -0.9%
Incl. PeakMemUse (bytes) per call 32,893 32,584 -310 -0.9%
Excl. PeakMemUse (bytes)5,712 5,768 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 Function-4 -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
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -225 -833.3% -217 -700.0% 0 0.0% -2,448 -8.7%
unserialize0 N/A% 222 822.2% 226 729.0% -736 -141.5% -25,160 -89.3%
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%