Diff Report
Run #517c1836bbd84: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c1770a3264: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #517c1836bbd84Run #517c1770a3264DiffDiff%
Number of Function Calls58 58 0 0.0%
Incl. Wall Time (microsec)24,000 22,958 -1,042 -4.3%
Incl. Wall Time (microsec) per call 414 396 -18 -4.3%
Excl. Wall Time (microsec)867 880 13 1.5%
Incl. CPU (microsecs)19,917 18,992 -925 -4.6%
Incl. CPU (microsecs) per call 343 327 -16 -4.6%
Excl. CPU (microsec)786 792 6 0.8%
Incl. MemUse (bytes)1,456,768 1,457,944 1,176 0.1%
Incl. MemUse (bytes) per call 25,117 25,137 20 0.1%
Excl. MemUse (bytes)-163,536 -163,680 -144 -0.1%
Incl. PeakMemUse (bytes)1,915,536 1,915,256 -280 -0.0%
Incl. PeakMemUse (bytes) per call 33,026 33,022 -5 -0.0%
Excl. PeakMemUse (bytes)5,960 6,064 104 1.7%

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% -1,042 -65.7% -925 -60.8% 1,176 19.4% -280 -4.6%
Exclusive Metrics Diff for Current Function13 1.2% 6 0.6% -144 -12.2% 104 37.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -1,042 -100.0% -925 -100.0% 1,176 100.0% -280 -100.0%
Child functions
unserialize0 N/A% -702 -67.4% -830 -89.7% 1,320 112.2% -144 -51.4%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -354 -34.0% -104 -11.2% 0 0.0% -240 -85.7%
explode0 N/A% 1 0.1% 3 0.3% 0 0.0% 0 0.0%