Diff Report
Run #519c1681d41e5: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519c153c76aa0: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519c1681d41e5Run #519c153c76aa0DiffDiff%
Number of Function Calls106 106 0 0.0%
Incl. Wall Time (microsec)25,223 24,853 -370 -1.5%
Incl. Wall Time (microsec) per call 238 234 -3 -1.5%
Excl. Wall Time (microsec)1,637 1,630 -7 -0.4%
Incl. CPU (microsecs)22,205 22,075 -130 -0.6%
Incl. CPU (microsecs) per call 209 208 -1 -0.6%
Excl. CPU (microsec)1,533 1,508 -25 -1.6%
Incl. MemUse (bytes)2,331,712 2,331,728 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)2,536,592 2,531,632 -4,960 -0.2%
Incl. PeakMemUse (bytes) per call 23,930 23,883 -47 -0.2%
Excl. PeakMemUse (bytes)7,248 7,232 -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 Function-7 -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%