Diff Report
Run #5204425923c81: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5204417bc7ab7: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5204425923c81Run #5204417bc7ab7DiffDiff%
Number of Function Calls104 104 0 0.0%
Incl. Wall Time (microsec)19,874 20,362 488 2.5%
Incl. Wall Time (microsec) per call 191 196 5 2.5%
Excl. Wall Time (microsec)1,633 1,531 -102 -6.2%
Incl. CPU (microsecs)16,318 16,603 285 1.7%
Incl. CPU (microsecs) per call 157 160 3 1.7%
Excl. CPU (microsec)1,475 1,364 -111 -7.5%
Incl. MemUse (bytes)1,988,424 1,987,728 -696 -0.0%
Incl. MemUse (bytes) per call 19,119 19,113 -7 -0.0%
Excl. MemUse (bytes)-280,080 -279,888 192 0.1%
Incl. PeakMemUse (bytes)2,623,448 2,622,752 -696 -0.0%
Incl. PeakMemUse (bytes) per call 25,225 25,219 -7 -0.0%
Excl. PeakMemUse (bytes)7,616 7,544 -72 -0.9%

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% 488 617.7% 285 36.5% -696 -1.5% -696 -1.5%
Exclusive Metrics Diff for Current Function-102 -20.9% -111 -38.9% 192 27.6% -72 -10.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 488 100.0% 285 100.0% -696 -100.0% -696 -100.0%
Child functions
unserialize0 N/A% 359 73.6% 338 118.6% -888 -127.6% -456 -65.5%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 222 45.5% 50 17.5% 0 0.0% -168 -24.1%
explode0 N/A% 9 1.8% 8 2.8% 0 0.0% 0 0.0%