Diff Report
Run #52e48ef364ce3: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #52e48e674e7b6: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52e48ef364ce3Run #52e48e674e7b6DiffDiff%
Number of Function Calls58 58 0 0.0%
Incl. Wall Time (microsec)8,223 8,637 414 5.0%
Incl. Wall Time (microsec) per call 142 149 7 5.0%
Excl. Wall Time (microsec)926 929 3 0.3%
Incl. CPU (microsecs)8,000 8,405 405 5.1%
Incl. CPU (microsecs) per call 138 145 7 5.1%
Excl. CPU (microsec)858 849 -9 -1.0%
Incl. MemUse (bytes)991,592 990,800 -792 -0.1%
Incl. MemUse (bytes) per call 17,096 17,083 -14 -0.1%
Excl. MemUse (bytes)-137,688 -137,544 144 0.1%
Incl. PeakMemUse (bytes)1,366,112 1,367,144 1,032 0.1%
Incl. PeakMemUse (bytes) per call 23,554 23,571 18 0.1%
Excl. PeakMemUse (bytes)4,560 4,800 240 5.3%

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% 414 130.2% 405 102.0% -792 -1.8% 1,032 2.4%
Exclusive Metrics Diff for Current Function3 0.7% -9 -2.2% 144 18.2% 240 23.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 414 100.0% 405 100.0% -792 -100.0% 1,032 100.0%
Child functions
unserialize0 N/A% 374 90.3% 374 92.3% -912 -115.2% -64 -6.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 44 10.6% 52 12.8% 0 0.0% 856 82.9%
explode0 N/A% -7 -1.7% -12 -3.0% -24 -3.0% 0 0.0%