Diff Report
Run #5178989df1d0f: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517896dc57c6e: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5178989df1d0fRun #517896dc57c6eDiffDiff%
Number of Function Calls127 127 0 0.0%
Incl. Wall Time (microsec)25,113 24,859 -254 -1.0%
Incl. Wall Time (microsec) per call 198 196 -2 -1.0%
Excl. Wall Time (microsec)1,576 1,579 3 0.2%
Incl. CPU (microsecs)21,368 20,858 -510 -2.4%
Incl. CPU (microsecs) per call 168 164 -4 -2.4%
Excl. CPU (microsec)1,447 1,438 -9 -0.6%
Incl. MemUse (bytes)1,895,464 1,895,520 56 0.0%
Incl. MemUse (bytes) per call 14,925 14,925 0 0.0%
Excl. MemUse (bytes)-422,896 -422,840 56 0.0%
Incl. PeakMemUse (bytes)2,501,320 2,501,120 -200 -0.0%
Incl. PeakMemUse (bytes) per call 19,695 19,694 -2 -0.0%
Excl. PeakMemUse (bytes)7,360 7,360 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% -254 -6.3% -510 -10.4% 56 0.9% -200 -3.4%
Exclusive Metrics Diff for Current Function3 1.2% -9 -1.8% 56 100.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -254 -100.0% -510 -100.0% 56 100.0% -200 -100.0%
Child functions
unserialize0 N/A% -185 -72.8% -434 -85.1% 16 28.6% -88 -44.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -79 -31.1% -77 -15.1% -16 -28.6% -112 -56.0%
explode0 N/A% 7 2.8% 10 2.0% 0 0.0% 0 0.0%