Diff Report
Run #51ad01387670b: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51ad01d342500: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ad01387670bRun #51ad01d342500DiffDiff%
Number of Function Calls71 71 0 0.0%
Incl. Wall Time (microsec)22,858 22,578 -280 -1.2%
Incl. Wall Time (microsec) per call 322 318 -4 -1.2%
Excl. Wall Time (microsec)1,139 1,242 103 9.0%
Incl. CPU (microsecs)18,431 18,316 -115 -0.6%
Incl. CPU (microsecs) per call 260 258 -2 -0.6%
Excl. CPU (microsec)1,028 1,166 138 13.4%
Incl. MemUse (bytes)1,720,720 1,724,112 3,392 0.2%
Incl. MemUse (bytes) per call 24,235 24,283 48 0.2%
Excl. MemUse (bytes)-189,416 -190,024 -608 -0.3%
Incl. PeakMemUse (bytes)2,001,568 2,005,656 4,088 0.2%
Incl. PeakMemUse (bytes) per call 28,191 28,249 58 0.2%
Excl. PeakMemUse (bytes)4,040 3,992 -48 -1.2%

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% -280 -6.8% -115 -2.3% 3,392 2.1% 4,088 2.6%
Exclusive Metrics Diff for Current Function103 36.8% 138 120.0% -608 -17.9% -48 -1.2%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -280 -100.0% -115 -100.0% 3,392 100.0% 4,088 100.0%
Child functions
unserialize0 N/A% -215 -76.8% -317 -275.7% 4,000 117.9% 4,016 98.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -190 -67.9% 40 34.8% 0 0.0% 120 2.9%
explode0 N/A% 22 7.9% 24 20.9% 0 0.0% 0 0.0%