Diff Report
Run #52f2e62cef49a: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52f2e60305388: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52f2e62cef49aRun #52f2e60305388DiffDiff%
Number of Function Calls96 96 0 0.0%
Incl. Wall Time (microsec)12,439 12,971 532 4.3%
Incl. Wall Time (microsec) per call 130 135 6 4.3%
Excl. Wall Time (microsec)1,263 1,246 -17 -1.3%
Incl. CPU (microsecs)11,276 11,740 464 4.1%
Incl. CPU (microsecs) per call 117 122 5 4.1%
Excl. CPU (microsec)1,133 1,104 -29 -2.6%
Incl. MemUse (bytes)2,488,800 2,488,528 -272 -0.0%
Incl. MemUse (bytes) per call 25,925 25,922 -3 -0.0%
Excl. MemUse (bytes)-400,464 -400,360 104 0.0%
Incl. PeakMemUse (bytes)2,932,920 2,932,896 -24 -0.0%
Incl. PeakMemUse (bytes) per call 30,551 30,551 -0 -0.0%
Excl. PeakMemUse (bytes)6,584 6,512 -72 -1.1%

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% 532 23.3% 464 22.6% -272 -0.5% -24 -0.0%
Exclusive Metrics Diff for Current Function-17 -3.2% -29 -6.2% 104 38.2% -72 -300.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 532 100.0% 464 100.0% -272 -100.0% -24 -100.0%
Child functions
unserialize0 N/A% 450 84.6% 454 97.8% -376 -138.2% -8 -33.3%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 166 31.2% 103 22.2% 0 0.0% 56 233.3%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% -66 -12.4% -67 -14.4% 0 0.0% 0 0.0%
explode0 N/A% -1 -0.2% 3 0.6% 0 0.0% 0 0.0%