Diff Report
Run #52f5cbc19a0d8: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5cb0964fa0: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52f5cbc19a0d8Run #52f5cb0964fa0DiffDiff%
Number of Function Calls99 99 0 0.0%
Incl. Wall Time (microsec)11,497 11,474 -23 -0.2%
Incl. Wall Time (microsec) per call 116 116 -0 -0.2%
Excl. Wall Time (microsec)956 977 21 2.2%
Incl. CPU (microsecs)10,628 10,596 -32 -0.3%
Incl. CPU (microsecs) per call 107 107 -0 -0.3%
Excl. CPU (microsec)843 865 22 2.6%
Incl. MemUse (bytes)2,049,136 2,048,304 -832 -0.0%
Incl. MemUse (bytes) per call 20,698 20,690 -8 -0.0%
Excl. MemUse (bytes)-275,904 -275,744 160 0.1%
Incl. PeakMemUse (bytes)2,710,072 2,713,352 3,280 0.1%
Incl. PeakMemUse (bytes) per call 27,374 27,408 33 0.1%
Excl. PeakMemUse (bytes)10,592 10,480 -112 -1.1%

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% -23 -24.7% -32 -16.4% -832 -2.8% 3,280 11.0%
Exclusive Metrics Diff for Current Function21 91.3% 22 68.8% 160 19.2% -112 -3.4%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -23 -100.0% -32 -100.0% -832 -100.0% 3,280 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -58 -252.2% -81 -253.1% 0 0.0% 3,584 109.3%
unserialize0 N/A% 20 87.0% 28 87.5% -992 -119.2% -112 -3.4%
explode0 N/A% -5 -21.7% -1 -3.1% 0 0.0% -80 -2.4%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% -1 -4.3% 0 0.0% 0 0.0% 0 0.0%