Diff Report
Run #52f5c0b2e882a: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5c11235c73: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52f5c0b2e882aRun #52f5c11235c73DiffDiff%
Number of Function Calls61 61 0 0.0%
Incl. Wall Time (microsec)5,612 5,728 116 2.1%
Incl. Wall Time (microsec) per call 92 94 2 2.1%
Excl. Wall Time (microsec)608 601 -7 -1.2%
Incl. CPU (microsecs)5,025 5,156 131 2.6%
Incl. CPU (microsecs) per call 82 85 2 2.6%
Excl. CPU (microsec)535 506 -29 -5.4%
Incl. MemUse (bytes)899,512 900,272 760 0.1%
Incl. MemUse (bytes) per call 14,746 14,759 12 0.1%
Excl. MemUse (bytes)-127,712 -127,832 -120 -0.1%
Incl. PeakMemUse (bytes)1,316,480 1,316,744 264 0.0%
Incl. PeakMemUse (bytes) per call 21,582 21,586 4 0.0%
Excl. PeakMemUse (bytes)7,976 7,976 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% 116 27.9% 131 55.3% 760 1.7% 264 0.6%
Exclusive Metrics Diff for Current Function-7 -6.0% -29 -22.1% -120 -15.8% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 116 100.0% 131 100.0% 760 100.0% 264 100.0%
Child functions
unserialize0 N/A% 108 93.1% 129 98.5% 856 112.6% 208 78.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 16 13.8% 29 22.1% 0 0.0% 32 12.1%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% -1 -0.9% 0 0.0% 0 0.0% 0 0.0%
explode0 N/A% 0 0.0% 2 1.5% 24 3.2% 24 9.1%