Diff Report
Run #52907577b0b08: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #5290760896b28: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52907577b0b08Run #5290760896b28DiffDiff%
Number of Function Calls102 102 0 0.0%
Incl. Wall Time (microsec)15,124 13,942 -1,182 -7.8%
Incl. Wall Time (microsec) per call 148 137 -12 -7.8%
Excl. Wall Time (microsec)1,361 1,333 -28 -2.1%
Incl. CPU (microsecs)13,919 12,715 -1,204 -8.7%
Incl. CPU (microsecs) per call 136 125 -12 -8.7%
Excl. CPU (microsec)1,213 1,192 -21 -1.7%
Incl. MemUse (bytes)1,961,256 1,962,008 752 0.0%
Incl. MemUse (bytes) per call 19,228 19,235 7 0.0%
Excl. MemUse (bytes)-325,648 -325,800 -152 -0.0%
Incl. PeakMemUse (bytes)2,642,680 2,639,176 -3,504 -0.1%
Incl. PeakMemUse (bytes) per call 25,909 25,874 -34 -0.1%
Excl. PeakMemUse (bytes)7,168 7,120 -48 -0.7%

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% -1,182 -52.6% -1,204 -60.1% 752 1.7% -3,504 -7.8%
Exclusive Metrics Diff for Current Function-28 -2.4% -21 -1.7% -152 -20.2% -48 -1.4%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -1,182 -100.0% -1,204 -100.0% 752 100.0% -3,504 -100.0%
Child functions
unserialize0 N/A% -1,015 -85.9% -1,019 -84.6% 880 117.0% 1,096 31.3%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -139 -11.8% -170 -14.1% 0 0.0% -4,408 -125.8%
explode0 N/A% 0 0.0% 6 0.5% 24 3.2% -144 -4.1%