Diff Report
Run #519c153c76aa0: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c1681d41e5: 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 #519c1681d41e5DiffDiff%
Number of Function Calls106 106 0 0.0%
Incl. Wall Time (microsec)24,853 25,223 370 1.5%
Incl. Wall Time (microsec) per call 234 238 3 1.5%
Excl. Wall Time (microsec)1,630 1,637 7 0.4%
Incl. CPU (microsecs)22,075 22,205 130 0.6%
Incl. CPU (microsecs) per call 208 209 1 0.6%
Excl. CPU (microsec)1,508 1,533 25 1.7%
Incl. MemUse (bytes)2,331,728 2,331,712 -16 -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 2,536,592 4,960 0.2%
Incl. PeakMemUse (bytes) per call 23,883 23,930 47 0.2%
Excl. PeakMemUse (bytes)7,232 7,248 16 0.2%

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% 370 10.0% 130 4.6% -16 -0.0% 4,960 8.6%
Exclusive Metrics Diff for Current Function7 1.9% 25 19.2% 0 0.0% 16 0.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 370 100.0% 130 100.0% -16 -100.0% 4,960 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 379 102.4% 100 76.9% 0 0.0% 1,152 23.2%
unserialize0 N/A% -32 -8.6% -17 -13.1% -16 -100.0% 3,792 76.5%
explode0 N/A% 16 4.3% 22 16.9% 0 0.0% 0 0.0%