Diff Report
Run #518b15389813f: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518b13c95a609: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #518b15389813fRun #518b13c95a609DiffDiff%
Number of Function Calls125 123 -2 -1.6%
Incl. Wall Time (microsec)23,095 23,949 854 3.7%
Incl. Wall Time (microsec) per call 185 195 10 5.4%
Excl. Wall Time (microsec)1,585 1,566 -19 -1.2%
Incl. CPU (microsecs)19,374 19,762 388 2.0%
Incl. CPU (microsecs) per call 155 161 6 3.7%
Excl. CPU (microsec)1,421 1,388 -33 -2.3%
Incl. MemUse (bytes)1,526,168 1,525,632 -536 -0.0%
Incl. MemUse (bytes) per call 12,209 12,404 194 1.6%
Excl. MemUse (bytes)-284,992 -284,488 504 0.2%
Incl. PeakMemUse (bytes)2,236,304 2,225,928 -10,376 -0.5%
Incl. PeakMemUse (bytes) per call 17,890 18,097 207 1.2%
Excl. PeakMemUse (bytes)7,648 7,648 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::prepareItem-2 -33.3% 854 4.2% 388 1.9% -536 -0.5% -10,376 -5.0%
Exclusive Metrics Diff for Current Function-19 -2.2% -33 -8.5% 504 94.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple-2 -100.0% 854 100.0% 388 100.0% -536 -100.0% -10,376 -100.0%
Child functions
unserialize-2 -50.0% 1,294 151.5% 542 139.7% -64 -11.9% -7,752 -74.7%
Drupal\Core\Cache\DatabaseBackend::checksumTags-2 -50.0% -428 -50.1% -126 -32.5% -976 -182.1% -2,624 -25.3%
explode0 0.0% 7 0.8% 5 1.3% 0 0.0% 0 0.0%