Diff Report
Run #52e4374042ace: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52e436ce9c71d: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52e4374042aceRun #52e436ce9c71dDiffDiff%
Number of Function Calls96 95 -1 -1.0%
Incl. Wall Time (microsec)11,915 11,762 -153 -1.3%
Incl. Wall Time (microsec) per call 124 124 -0 -0.2%
Excl. Wall Time (microsec)1,069 1,019 -50 -4.7%
Incl. CPU (microsecs)10,946 10,787 -159 -1.5%
Incl. CPU (microsecs) per call 114 114 -0 -0.4%
Excl. CPU (microsec)948 878 -70 -7.4%
Incl. MemUse (bytes)2,228,112 2,214,696 -13,416 -0.6%
Incl. MemUse (bytes) per call 23,210 23,313 103 0.4%
Excl. MemUse (bytes)-332,200 -330,192 2,008 0.6%
Incl. PeakMemUse (bytes)2,939,504 2,912,736 -26,768 -0.9%
Incl. PeakMemUse (bytes) per call 30,620 30,660 41 0.1%
Excl. PeakMemUse (bytes)8,080 8,056 -24 -0.3%

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::prepareItem-1 -33.3% -153 -13.1% -159 -15.7% -13,416 -16.5% -26,768 -33.4%
Exclusive Metrics Diff for Current Function-50 -32.7% -70 -44.0% 2,008 15.0% -24 -0.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple-1 -100.0% -153 -100.0% -159 -100.0% -13,416 -100.0% -26,768 -100.0%
Child functions
unserialize-1 -50.0% -81 -52.9% -84 -52.8% -14,920 -111.2% -24,672 -92.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags-1 -50.0% -23 -15.0% 0 0.0% -504 -3.8% -2,072 -7.7%
explode0 0.0% 1 0.7% -5 -3.1% 0 0.0% 0 0.0%