Diff Report
Run #51ca5b0eb2b08: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51ca5a4995c23: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ca5b0eb2b08Run #51ca5a4995c23DiffDiff%
Number of Function Calls85 85 0 0.0%
Incl. Wall Time (microsec)27,912 28,399 487 1.7%
Incl. Wall Time (microsec) per call 328 334 6 1.7%
Excl. Wall Time (microsec)1,702 1,930 228 13.4%
Incl. CPU (microsecs)23,661 23,972 311 1.3%
Incl. CPU (microsecs) per call 278 282 4 1.3%
Excl. CPU (microsec)1,605 1,833 228 14.2%
Incl. MemUse (bytes)2,081,936 2,078,264 -3,672 -0.2%
Incl. MemUse (bytes) per call 24,493 24,450 -43 -0.2%
Excl. MemUse (bytes)-225,488 -224,872 616 0.3%
Incl. PeakMemUse (bytes)2,578,496 2,574,184 -4,312 -0.2%
Incl. PeakMemUse (bytes) per call 30,335 30,285 -51 -0.2%
Excl. PeakMemUse (bytes)7,704 7,664 -40 -0.5%

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% 487 13.1% 311 12.4% -3,672 -1.7% -4,312 -2.0%
Exclusive Metrics Diff for Current Function228 46.8% 228 73.3% 616 16.8% -40 -0.9%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 487 100.0% 311 100.0% -3,672 -100.0% -4,312 -100.0%
Child functions
unserialize0 N/A% 456 93.6% 219 70.4% -4,288 -116.8% -3,688 -85.5%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -213 -43.7% -155 -49.8% 0 0.0% -584 -13.5%
explode0 N/A% 16 3.3% 19 6.1% 0 0.0% 0 0.0%