Diff Report
Run #51978cc86c728: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51978d2b1f3d1: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51978cc86c728Run #51978d2b1f3d1DiffDiff%
Number of Function Calls85 85 0 0.0%
Incl. Wall Time (microsec)27,849 28,068 219 0.8%
Incl. Wall Time (microsec) per call 328 330 3 0.8%
Excl. Wall Time (microsec)1,396 1,362 -34 -2.4%
Incl. CPU (microsecs)23,638 23,412 -226 -1.0%
Incl. CPU (microsecs) per call 278 275 -3 -1.0%
Excl. CPU (microsec)1,243 1,248 5 0.4%
Incl. MemUse (bytes)1,934,280 1,934,280 0 0.0%
Incl. MemUse (bytes) per call 22,756 22,756 0 0.0%
Excl. MemUse (bytes)-212,008 -212,008 0 0.0%
Incl. PeakMemUse (bytes)2,327,056 2,327,056 0 0.0%
Incl. PeakMemUse (bytes) per call 27,377 27,377 0 0.0%
Excl. PeakMemUse (bytes)7,024 7,024 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::prepareItem0 N/A% 219 54.6% -226 -24.1% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-34 -15.5% 5 2.2% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 219 100.0% -226 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 152 69.4% -307 -135.8% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 99 45.2% 74 32.7% 0 N/A% 0 N/A%
explode0 N/A% 2 0.9% 2 0.9% 0 N/A% 0 N/A%