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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52e436ce9c71dRun #52e4374042aceDiffDiff%
Number of Function Calls95 96 1 1.1%
Incl. Wall Time (microsec)11,762 11,915 153 1.3%
Incl. Wall Time (microsec) per call 124 124 0 0.2%
Excl. Wall Time (microsec)1,019 1,069 50 4.9%
Incl. CPU (microsecs)10,787 10,946 159 1.5%
Incl. CPU (microsecs) per call 114 114 0 0.4%
Excl. CPU (microsec)878 948 70 8.0%
Incl. MemUse (bytes)2,214,696 2,228,112 13,416 0.6%
Incl. MemUse (bytes) per call 23,313 23,210 -103 -0.4%
Excl. MemUse (bytes)-330,192 -332,200 -2,008 -0.6%
Incl. PeakMemUse (bytes)2,912,736 2,939,504 26,768 0.9%
Incl. PeakMemUse (bytes) per call 30,660 30,620 -41 -0.1%
Excl. PeakMemUse (bytes)8,056 8,080 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::prepareItem1 33.3% 153 13.1% 159 15.7% 13,416 16.5% 26,768 33.4%
Exclusive Metrics Diff for Current Function50 32.7% 70 44.0% -2,008 -15.0% 24 0.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple1 100.0% 153 100.0% 159 100.0% 13,416 100.0% 26,768 100.0%
Child functions
unserialize1 50.0% 81 52.9% 84 52.8% 14,920 111.2% 24,672 92.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags1 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%