Diff Report
Run #518fbd1297c93: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518fb7370421e: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #518fbd1297c93Run #518fb7370421eDiffDiff%
Number of Function Calls70 70 0 0.0%
Incl. Wall Time (microsec)17,630 17,833 203 1.2%
Incl. Wall Time (microsec) per call 252 255 3 1.2%
Excl. Wall Time (microsec)1,027 1,046 19 1.9%
Incl. CPU (microsecs)14,546 14,612 66 0.5%
Incl. CPU (microsecs) per call 208 209 1 0.5%
Excl. CPU (microsec)923 964 41 4.4%
Incl. MemUse (bytes)1,368,408 1,368,400 -8 -0.0%
Incl. MemUse (bytes) per call 19,549 19,549 -0 -0.0%
Excl. MemUse (bytes)-193,840 -193,848 -8 -0.0%
Incl. PeakMemUse (bytes)1,969,784 1,963,048 -6,736 -0.3%
Incl. PeakMemUse (bytes) per call 28,140 28,044 -96 -0.3%
Excl. PeakMemUse (bytes)6,616 6,616 0 0.0%

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% 203 6.4% 66 1.5% -8 -0.0% -6,736 -1.6%
Exclusive Metrics Diff for Current Function19 9.4% 41 62.1% -8 -100.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 203 100.0% 66 100.0% -8 -100.0% -6,736 -100.0%
Child functions
unserialize0 N/A% 94 46.3% 13 19.7% 0 0.0% -5,504 -81.7%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 90 44.3% 15 22.7% 0 0.0% -1,232 -18.3%
explode0 N/A% 0 0.0% -3 -4.5% 0 0.0% 0 0.0%