Diff Report
Run #51b517a409f93: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51b518680585e: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51b517a409f93Run #51b518680585eDiffDiff%
Number of Function Calls115 115 0 0.0%
Incl. Wall Time (microsec)34,894 34,770 -124 -0.4%
Incl. Wall Time (microsec) per call 303 302 -1 -0.4%
Excl. Wall Time (microsec)2,647 2,672 25 0.9%
Incl. CPU (microsecs)29,218 29,142 -76 -0.3%
Incl. CPU (microsecs) per call 254 253 -1 -0.3%
Excl. CPU (microsec)2,487 2,512 25 1.0%
Incl. MemUse (bytes)2,291,120 2,291,232 112 0.0%
Incl. MemUse (bytes) per call 19,923 19,924 1 0.0%
Excl. MemUse (bytes)-334,480 -334,472 8 0.0%
Incl. PeakMemUse (bytes)2,423,896 2,423,864 -32 -0.0%
Incl. PeakMemUse (bytes) per call 21,077 21,077 -0 -0.0%
Excl. PeakMemUse (bytes)5,104 4,960 -144 -2.8%

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% -124 -2.4% -76 -2.6% 112 0.3% -32 -0.1%
Exclusive Metrics Diff for Current Function25 20.2% 25 32.9% 8 7.1% -144 -450.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -124 -100.0% -76 -100.0% 112 100.0% -32 -100.0%
Child functions
unserialize0 N/A% -216 -174.2% -156 -205.3% 104 92.9% -184 -575.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 43 34.7% 29 38.2% 0 0.0% 296 925.0%
explode0 N/A% 24 19.4% 26 34.2% 0 0.0% 0 0.0%