Diff Report
Run #51b032b631491: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51b033ccbc666: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51b032b631491Run #51b033ccbc666DiffDiff%
Number of Function Calls79 79 0 0.0%
Incl. Wall Time (microsec)19,349 20,120 771 4.0%
Incl. Wall Time (microsec) per call 245 255 10 4.0%
Excl. Wall Time (microsec)1,446 1,449 3 0.2%
Incl. CPU (microsecs)15,348 15,653 305 2.0%
Incl. CPU (microsecs) per call 194 198 4 2.0%
Excl. CPU (microsec)1,314 1,325 11 0.8%
Incl. MemUse (bytes)1,605,640 1,606,792 1,152 0.1%
Incl. MemUse (bytes) per call 20,325 20,339 15 0.1%
Excl. MemUse (bytes)-217,928 -218,152 -224 -0.1%
Incl. PeakMemUse (bytes)1,732,608 1,626,056 -106,552 -6.1%
Incl. PeakMemUse (bytes) per call 21,932 20,583 -1,349 -6.1%
Excl. PeakMemUse (bytes)4,048 4,184 136 3.4%

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% 771 4.0% 305 1.5% 1,152 0.6% -106,552 -56.9%
Exclusive Metrics Diff for Current Function3 0.4% 11 3.6% -224 -19.4% 136 0.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 771 100.0% 305 100.0% 1,152 100.0% -106,552 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 563 73.0% 175 57.4% 0 0.0% 56 0.1%
unserialize0 N/A% 213 27.6% 121 39.7% 1,376 119.4% -106,744 -100.2%
explode0 N/A% -8 -1.0% -2 -0.7% 0 0.0% 0 0.0%