Diff Report
Run #52f5c11235c73: 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 #52f5c11235c73Run #52f5c0b2e882aDiffDiff%
Number of Function Calls61 61 0 0.0%
Incl. Wall Time (microsec)5,728 5,612 -116 -2.0%
Incl. Wall Time (microsec) per call 94 92 -2 -2.0%
Excl. Wall Time (microsec)601 608 7 1.2%
Incl. CPU (microsecs)5,156 5,025 -131 -2.5%
Incl. CPU (microsecs) per call 85 82 -2 -2.5%
Excl. CPU (microsec)506 535 29 5.7%
Incl. MemUse (bytes)900,272 899,512 -760 -0.1%
Incl. MemUse (bytes) per call 14,759 14,746 -12 -0.1%
Excl. MemUse (bytes)-127,832 -127,712 120 0.1%
Incl. PeakMemUse (bytes)1,316,744 1,316,480 -264 -0.0%
Incl. PeakMemUse (bytes) per call 21,586 21,582 -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 Function7 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%