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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5204417bc7ab7Run #5204425923c81DiffDiff%
Number of Function Calls104 104 0 0.0%
Incl. Wall Time (microsec)20,362 19,874 -488 -2.4%
Incl. Wall Time (microsec) per call 196 191 -5 -2.4%
Excl. Wall Time (microsec)1,531 1,633 102 6.7%
Incl. CPU (microsecs)16,603 16,318 -285 -1.7%
Incl. CPU (microsecs) per call 160 157 -3 -1.7%
Excl. CPU (microsec)1,364 1,475 111 8.1%
Incl. MemUse (bytes)1,987,728 1,988,424 696 0.0%
Incl. MemUse (bytes) per call 19,113 19,119 7 0.0%
Excl. MemUse (bytes)-279,888 -280,080 -192 -0.1%
Incl. PeakMemUse (bytes)2,622,752 2,623,448 696 0.0%
Incl. PeakMemUse (bytes) per call 25,219 25,225 7 0.0%
Excl. PeakMemUse (bytes)7,544 7,616 72 1.0%

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% -488 -617.7% -285 -36.5% 696 1.5% 696 1.5%
Exclusive Metrics Diff for Current Function102 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%