Diff Report
Run #519c153c76aa0: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c1639640b3: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519c153c76aa0Run #519c1639640b3DiffDiff%
Number of Function Calls106 106 0 0.0%
Incl. Wall Time (microsec)24,853 25,158 305 1.2%
Incl. Wall Time (microsec) per call 234 237 3 1.2%
Excl. Wall Time (microsec)1,630 1,642 12 0.7%
Incl. CPU (microsecs)22,075 22,359 284 1.3%
Incl. CPU (microsecs) per call 208 211 3 1.3%
Excl. CPU (microsec)1,508 1,520 12 0.8%
Incl. MemUse (bytes)2,331,728 2,331,728 0 0.0%
Incl. MemUse (bytes) per call 21,997 21,997 0 0.0%
Excl. MemUse (bytes)-303,360 -303,360 0 0.0%
Incl. PeakMemUse (bytes)2,531,632 2,531,632 0 0.0%
Incl. PeakMemUse (bytes) per call 23,883 23,883 0 0.0%
Excl. PeakMemUse (bytes)7,232 7,232 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% 305 159.7% 284 223.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function12 3.9% 12 4.2% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 305 100.0% 284 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 242 79.3% 211 74.3% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 52 17.0% 60 21.1% 0 N/A% 0 N/A%
explode0 N/A% -1 -0.3% 1 0.4% 0 N/A% 0 N/A%