Diff Report
Run #519fc9a1407b3: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fc956834f6: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519fc9a1407b3Run #519fc956834f6DiffDiff%
Number of Function Calls88 88 0 0.0%
Incl. Wall Time (microsec)14,906 15,066 160 1.1%
Incl. Wall Time (microsec) per call 169 171 2 1.1%
Excl. Wall Time (microsec)1,099 1,113 14 1.3%
Incl. CPU (microsecs)12,001 12,000 -1 -0.0%
Incl. CPU (microsecs) per call 136 136 -0 -0.0%
Excl. CPU (microsec)0 4,000 4,000 N/A%
Incl. MemUse (bytes)1,757,032 1,755,448 -1,584 -0.1%
Incl. MemUse (bytes) per call 19,966 19,948 -18 -0.1%
Excl. MemUse (bytes)-232,104 -231,792 312 0.1%
Incl. PeakMemUse (bytes)2,397,520 2,397,656 136 0.0%
Incl. PeakMemUse (bytes) per call 27,245 27,246 2 0.0%
Excl. PeakMemUse (bytes)10,888 10,944 56 0.5%

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% 160 39.1% -1 -0.0% -1,584 -1.0% 136 0.1%
Exclusive Metrics Diff for Current Function14 8.8% 4,000 400000.0% 312 19.7% 56 41.2%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 160 100.0% -1 -100.0% -1,584 -100.0% 136 100.0%
Child functions
unserialize0 N/A% 181 113.1% -4,001 -400100.0% -1,880 -118.7% 16 11.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -38 -23.8% 0 0.0% -24 -1.5% 56 41.2%
explode0 N/A% 3 1.9% 0 0.0% 8 0.5% 8 5.9%