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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ad01d342500Run #51ad01387670bDiffDiff%
Number of Function Calls71 71 0 0.0%
Incl. Wall Time (microsec)22,578 22,858 280 1.2%
Incl. Wall Time (microsec) per call 318 322 4 1.2%
Excl. Wall Time (microsec)1,242 1,139 -103 -8.3%
Incl. CPU (microsecs)18,316 18,431 115 0.6%
Incl. CPU (microsecs) per call 258 260 2 0.6%
Excl. CPU (microsec)1,166 1,028 -138 -11.8%
Incl. MemUse (bytes)1,724,112 1,720,720 -3,392 -0.2%
Incl. MemUse (bytes) per call 24,283 24,235 -48 -0.2%
Excl. MemUse (bytes)-190,024 -189,416 608 0.3%
Incl. PeakMemUse (bytes)2,005,656 2,001,568 -4,088 -0.2%
Incl. PeakMemUse (bytes) per call 28,249 28,191 -58 -0.2%
Excl. PeakMemUse (bytes)3,992 4,040 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 Function-103 -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%