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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #518fb7370421eRun #518fbd1297c93DiffDiff%
Number of Function Calls70 70 0 0.0%
Incl. Wall Time (microsec)17,833 17,630 -203 -1.1%
Incl. Wall Time (microsec) per call 255 252 -3 -1.1%
Excl. Wall Time (microsec)1,046 1,027 -19 -1.8%
Incl. CPU (microsecs)14,612 14,546 -66 -0.5%
Incl. CPU (microsecs) per call 209 208 -1 -0.5%
Excl. CPU (microsec)964 923 -41 -4.3%
Incl. MemUse (bytes)1,368,400 1,368,408 8 0.0%
Incl. MemUse (bytes) per call 19,549 19,549 0 0.0%
Excl. MemUse (bytes)-193,848 -193,840 8 0.0%
Incl. PeakMemUse (bytes)1,963,048 1,969,784 6,736 0.3%
Incl. PeakMemUse (bytes) per call 28,044 28,140 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 Function-19 -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%