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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52e48e674e7b6Run #52e48ef364ce3DiffDiff%
Number of Function Calls58 58 0 0.0%
Incl. Wall Time (microsec)8,637 8,223 -414 -4.8%
Incl. Wall Time (microsec) per call 149 142 -7 -4.8%
Excl. Wall Time (microsec)929 926 -3 -0.3%
Incl. CPU (microsecs)8,405 8,000 -405 -4.8%
Incl. CPU (microsecs) per call 145 138 -7 -4.8%
Excl. CPU (microsec)849 858 9 1.1%
Incl. MemUse (bytes)990,800 991,592 792 0.1%
Incl. MemUse (bytes) per call 17,083 17,096 14 0.1%
Excl. MemUse (bytes)-137,544 -137,688 -144 -0.1%
Incl. PeakMemUse (bytes)1,367,144 1,366,112 -1,032 -0.1%
Incl. PeakMemUse (bytes) per call 23,571 23,554 -18 -0.1%
Excl. PeakMemUse (bytes)4,800 4,560 -240 -5.0%

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 Function-3 -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%