Diff Report
Run #530ad2358a7c5: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #530ad1a439784: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #530ad2358a7c5Run #530ad1a439784DiffDiff%
Number of Function Calls121 121 0 0.0%
Incl. Wall Time (microsec)20,458 20,757 299 1.5%
Incl. Wall Time (microsec) per call 169 172 2 1.5%
Excl. Wall Time (microsec)1,815 1,864 49 2.7%
Incl. CPU (microsecs)19,894 20,184 290 1.5%
Incl. CPU (microsecs) per call 164 167 2 1.5%
Excl. CPU (microsec)1,658 1,682 24 1.4%
Incl. MemUse (bytes)3,037,256 3,036,928 -328 -0.0%
Incl. MemUse (bytes) per call 25,101 25,099 -3 -0.0%
Excl. MemUse (bytes)-423,160 -422,920 240 0.1%
Incl. PeakMemUse (bytes)3,334,264 3,341,472 7,208 0.2%
Incl. PeakMemUse (bytes) per call 27,556 27,615 60 0.2%
Excl. PeakMemUse (bytes)7,248 7,432 184 2.5%

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% 299 41.5% 290 119.8% -328 -1.0% 7,208 19.4%
Exclusive Metrics Diff for Current Function49 16.4% 24 8.3% 240 73.2% 184 2.6%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 299 100.0% 290 100.0% -328 -100.0% 7,208 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 219 73.2% 235 81.0% 0 0.0% 984 13.7%
unserialize0 N/A% 44 14.7% 49 16.9% -584 -178.0% 6,064 84.1%
spl_autoload_call0 N/A% -9 -3.0% -8 -2.8% 0 0.0% -40 -0.6%
explode0 N/A% -4 -1.3% -10 -3.4% 16 4.9% 16 0.2%