Diff Report
Run #51f5bbaa8fc1d: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51f5bb078e5a7: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51f5bbaa8fc1dRun #51f5bb078e5a7DiffDiff%
Number of Function Calls105 105 0 0.0%
Incl. Wall Time (microsec)20,417 19,461 -956 -4.7%
Incl. Wall Time (microsec) per call 194 185 -9 -4.7%
Excl. Wall Time (microsec)1,576 1,549 -27 -1.7%
Incl. CPU (microsecs)16,526 16,263 -263 -1.6%
Incl. CPU (microsecs) per call 157 155 -3 -1.6%
Excl. CPU (microsec)1,426 1,420 -6 -0.4%
Incl. MemUse (bytes)2,021,272 2,013,112 -8,160 -0.4%
Incl. MemUse (bytes) per call 19,250 19,172 -78 -0.4%
Excl. MemUse (bytes)-279,672 -278,272 1,400 0.5%
Incl. PeakMemUse (bytes)2,547,680 2,534,096 -13,584 -0.5%
Incl. PeakMemUse (bytes) per call 24,264 24,134 -129 -0.5%
Excl. PeakMemUse (bytes)7,552 7,456 -96 -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% -956 -20.8% -263 -6.1% -8,160 -14.7% -13,584 -23.8%
Exclusive Metrics Diff for Current Function-27 -2.8% -6 -2.3% 1,400 17.2% -96 -0.7%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -956 -100.0% -263 -100.0% -8,160 -100.0% -13,584 -100.0%
Child functions
unserialize0 N/A% -506 -52.9% -110 -41.8% -9,536 -116.9% -14,928 -109.9%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -418 -43.7% -140 -53.2% -24 -0.3% 1,440 10.6%
explode0 N/A% -5 -0.5% -7 -2.7% 0 0.0% 0 0.0%