Diff Report
Run #52e4a1c03557c: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e4a222581ef: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52e4a1c03557cRun #52e4a222581efDiffDiff%
Number of Function Calls63 63 0 0.0%
Incl. Wall Time (microsec)7,723 7,655 -68 -0.9%
Incl. Wall Time (microsec) per call 123 122 -1 -0.9%
Excl. Wall Time (microsec)679 699 20 2.9%
Incl. CPU (microsecs)6,798 6,740 -58 -0.9%
Incl. CPU (microsecs) per call 108 107 -1 -0.9%
Excl. CPU (microsec)600 614 14 2.3%
Incl. MemUse (bytes)1,378,000 1,378,720 720 0.1%
Incl. MemUse (bytes) per call 21,873 21,884 11 0.1%
Excl. MemUse (bytes)-199,360 -199,520 -160 -0.1%
Incl. PeakMemUse (bytes)1,826,400 1,825,984 -416 -0.0%
Incl. PeakMemUse (bytes) per call 28,990 28,984 -7 -0.0%
Excl. PeakMemUse (bytes)7,352 7,352 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% -68 -13.8% -58 -27.4% 720 2.8% -416 -1.6%
Exclusive Metrics Diff for Current Function20 29.4% 14 24.1% -160 -22.2% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -68 -100.0% -58 -100.0% 720 100.0% -416 -100.0%
Child functions
unserialize0 N/A% -124 -182.4% -119 -205.2% 840 116.7% -160 -38.5%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 24 35.3% 37 63.8% 16 2.2% -272 -65.4%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 12 17.6% 13 22.4% 8 1.1% 8 1.9%
explode0 N/A% 0 0.0% -3 -5.2% 16 2.2% 8 1.9%