Diff Report
Run #519ec8682c2dc: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #519ec94fa4daa: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519ec8682c2dcRun #519ec94fa4daaDiffDiff%
Number of Function Calls118 118 0 0.0%
Incl. Wall Time (microsec)26,776 23,876 -2,900 -10.8%
Incl. Wall Time (microsec) per call 227 202 -25 -10.8%
Excl. Wall Time (microsec)1,764 1,629 -135 -7.7%
Incl. CPU (microsecs)20,768 19,523 -1,245 -6.0%
Incl. CPU (microsecs) per call 176 165 -11 -6.0%
Excl. CPU (microsec)1,647 1,511 -136 -8.3%
Incl. MemUse (bytes)1,561,328 1,558,816 -2,512 -0.2%
Incl. MemUse (bytes) per call 13,232 13,210 -21 -0.2%
Excl. MemUse (bytes)-383,736 -382,872 864 0.2%
Incl. PeakMemUse (bytes)1,978,000 1,986,464 8,464 0.4%
Incl. PeakMemUse (bytes) per call 16,763 16,834 72 0.4%
Excl. PeakMemUse (bytes)5,152 7,584 2,432 47.2%

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% -2,900 -8.7% -1,245 -3.0% -2,512 -0.3% 8,464 1.3%
Exclusive Metrics Diff for Current Function-135 -4.7% -136 -10.9% 864 34.4% 2,432 28.7%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -2,900 -100.0% -1,245 -100.0% -2,512 -100.0% 8,464 100.0%
Child functions
unserialize0 N/A% -1,622 -55.9% -580 -46.6% -3,376 -134.4% 4,840 57.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -1,114 -38.4% -493 -39.6% 0 0.0% 1,192 14.1%
explode0 N/A% -29 -1.0% -36 -2.9% 0 0.0% 0 0.0%