Diff Report
Run #52f5c520502f0: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52f5c574bebaf: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52f5c520502f0Run #52f5c574bebafDiffDiff%
Number of Function Calls69 69 0 0.0%
Incl. Wall Time (microsec)5,932 5,884 -48 -0.8%
Incl. Wall Time (microsec) per call 86 85 -1 -0.8%
Excl. Wall Time (microsec)660 663 3 0.5%
Incl. CPU (microsecs)5,380 5,332 -48 -0.9%
Incl. CPU (microsecs) per call 78 77 -1 -0.9%
Excl. CPU (microsec)577 589 12 2.1%
Incl. MemUse (bytes)928,464 929,264 800 0.1%
Incl. MemUse (bytes) per call 13,456 13,468 12 0.1%
Excl. MemUse (bytes)-133,392 -133,536 -144 -0.1%
Incl. PeakMemUse (bytes)1,363,984 1,364,976 992 0.1%
Incl. PeakMemUse (bytes) per call 19,768 19,782 14 0.1%
Excl. PeakMemUse (bytes)7,976 7,904 -72 -0.9%

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% -48 -208.7% -48 -52.2% 800 1.8% 992 2.2%
Exclusive Metrics Diff for Current Function3 6.2% 12 25.0% -144 -18.0% -72 -7.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -48 -100.0% -48 -100.0% 800 100.0% 992 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -32 -66.7% -39 -81.2% 0 0.0% 256 25.8%
unserialize0 N/A% -20 -41.7% -29 -60.4% 920 115.0% 784 79.0%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 1 2.1% 1 2.1% 0 0.0% 0 0.0%
explode0 N/A% 0 0.0% 7 14.6% 24 3.0% 24 2.4%