Diff Report
Run #53923e49d2b58: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #53923d861ff11: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #53923e49d2b58Run #53923d861ff11DiffDiff%
Number of Function Calls87 87 0 0.0%
Incl. Wall Time (microsec)36,568 35,820 -748 -2.0%
Incl. Wall Time (microsec) per call 420 412 -9 -2.0%
Excl. Wall Time (microsec)1,696 1,664 -32 -1.9%
Incl. CPU (microsecs)29,766 29,231 -535 -1.8%
Incl. CPU (microsecs) per call 342 336 -6 -1.8%
Excl. CPU (microsec)1,523 1,534 11 0.7%
Incl. MemUse (bytes)1,612,852 1,612,836 -16 -0.0%
Incl. MemUse (bytes) per call 18,539 18,538 -0 -0.0%
Excl. MemUse (bytes)-451,168 -451,168 0 0.0%
Incl. PeakMemUse (bytes)2,061,048 2,070,840 9,792 0.5%
Incl. PeakMemUse (bytes) per call 23,690 23,803 113 0.5%
Excl. PeakMemUse (bytes)11,564 3,736 -7,828 -67.7%

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% -748 -47.8% -535 -49.0% -16 -1.8% 9,792 1406.9%
Exclusive Metrics Diff for Current Function-32 -4.3% 11 2.1% 0 0.0% -7,828 -79.9%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -748 -100.0% -535 -100.0% -16 -100.0% 9,792 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -563 -75.3% -392 -73.3% -8 -50.0% 10,456 106.8%
unserialize0 N/A% -151 -20.2% -140 -26.2% -20 -125.0% 7,180 73.3%
explode0 N/A% -1 -0.1% -14 -2.6% 12 75.0% -16 -0.2%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% -1 -0.1% 0 0.0% 0 0.0% 0 0.0%