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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52e4a222581efRun #52e4a1c03557cDiffDiff%
Number of Function Calls63 63 0 0.0%
Incl. Wall Time (microsec)7,655 7,723 68 0.9%
Incl. Wall Time (microsec) per call 122 123 1 0.9%
Excl. Wall Time (microsec)699 679 -20 -2.9%
Incl. CPU (microsecs)6,740 6,798 58 0.9%
Incl. CPU (microsecs) per call 107 108 1 0.9%
Excl. CPU (microsec)614 600 -14 -2.3%
Incl. MemUse (bytes)1,378,720 1,378,000 -720 -0.1%
Incl. MemUse (bytes) per call 21,884 21,873 -11 -0.1%
Excl. MemUse (bytes)-199,520 -199,360 160 0.1%
Incl. PeakMemUse (bytes)1,825,984 1,826,400 416 0.0%
Incl. PeakMemUse (bytes) per call 28,984 28,990 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 Function-20 -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%