Diff Report
Run #52f5c0f4ebbb2: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5c0b2e882a: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52f5c0f4ebbb2Run #52f5c0b2e882aDiffDiff%
Number of Function Calls61 61 0 0.0%
Incl. Wall Time (microsec)5,685 5,612 -73 -1.3%
Incl. Wall Time (microsec) per call 93 92 -1 -1.3%
Excl. Wall Time (microsec)623 608 -15 -2.4%
Incl. CPU (microsecs)5,101 5,025 -76 -1.5%
Incl. CPU (microsecs) per call 84 82 -1 -1.5%
Excl. CPU (microsec)557 535 -22 -3.9%
Incl. MemUse (bytes)899,512 899,512 0 0.0%
Incl. MemUse (bytes) per call 14,746 14,746 0 0.0%
Excl. MemUse (bytes)-127,712 -127,712 0 0.0%
Incl. PeakMemUse (bytes)1,316,480 1,316,480 0 0.0%
Incl. PeakMemUse (bytes) per call 21,582 21,582 0 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% -73 -13.5% -76 -14.3% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-15 -20.5% -22 -28.9% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -73 -100.0% -76 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -57 -78.1% -51 -67.1% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -2 -2.7% -6 -7.9% 0 N/A% 0 N/A%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 1 1.4% 1 1.3% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 2 2.6% 0 N/A% 0 N/A%