Diff Report
Run #534ad8dec7444: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #534ad9c94e95b: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #534ad8dec7444Run #534ad9c94e95bDiffDiff%
Number of Function Calls132 132 0 0.0%
Incl. Wall Time (microsec)46,722 46,322 -400 -0.9%
Incl. Wall Time (microsec) per call 354 351 -3 -0.9%
Excl. Wall Time (microsec)2,724 2,529 -195 -7.2%
Incl. CPU (microsecs)40,361 40,353 -8 -0.0%
Incl. CPU (microsecs) per call 306 306 -0 -0.0%
Excl. CPU (microsec)2,304 2,275 -29 -1.3%
Incl. MemUse (bytes)1,893,500 1,893,828 328 0.0%
Incl. MemUse (bytes) per call 14,345 14,347 2 0.0%
Excl. MemUse (bytes)-472,400 -472,596 -196 -0.0%
Incl. PeakMemUse (bytes)2,509,800 2,510,188 388 0.0%
Incl. PeakMemUse (bytes) per call 19,014 19,017 3 0.0%
Excl. PeakMemUse (bytes)3,312 3,312 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% -400 -24.3% -8 -1.6% 328 1.4% 388 1.6%
Exclusive Metrics Diff for Current Function-195 -48.8% -29 -362.5% -196 -59.8% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -400 -100.0% -8 -100.0% 328 100.0% 388 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -135 -33.8% 9 112.5% 0 0.0% 52 13.4%
unserialize0 N/A% -42 -10.5% 37 462.5% 524 159.8% 336 86.6%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% -19 -4.8% -20 -250.0% 0 0.0% 0 0.0%
explode0 N/A% -9 -2.2% -5 -62.5% 0 0.0% 0 0.0%