Diff Report
Run #519bd4feea4c7: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #519bd405e5fe3: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519bd4feea4c7Run #519bd405e5fe3DiffDiff%
Number of Function Calls140 140 0 0.0%
Incl. Wall Time (microsec)33,341 33,620 279 0.8%
Incl. Wall Time (microsec) per call 238 240 2 0.8%
Excl. Wall Time (microsec)2,640 2,716 76 2.9%
Incl. CPU (microsecs)28,993 29,065 72 0.2%
Incl. CPU (microsecs) per call 207 208 1 0.2%
Excl. CPU (microsec)2,477 2,540 63 2.5%
Incl. MemUse (bytes)2,380,112 2,380,208 96 0.0%
Incl. MemUse (bytes) per call 17,001 17,001 1 0.0%
Excl. MemUse (bytes)-477,360 -477,360 0 0.0%
Incl. PeakMemUse (bytes)2,753,440 2,752,880 -560 -0.0%
Incl. PeakMemUse (bytes) per call 19,667 19,663 -4 -0.0%
Excl. PeakMemUse (bytes)7,232 7,296 64 0.9%

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% 279 4.7% 72 1.1% 96 0.2% -560 -2.5%
Exclusive Metrics Diff for Current Function76 27.2% 63 87.5% 0 0.0% 64 11.4%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 279 100.0% 72 100.0% 96 100.0% -560 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 154 55.2% 106 147.2% 0 0.0% -128 -22.9%
unserialize0 N/A% 64 22.9% -75 -104.2% 96 100.0% -496 -88.6%
explode0 N/A% -15 -5.4% -22 -30.6% 0 0.0% 0 0.0%