Diff Report
Run #519a4887d3a25: XHProf Run (Namespace=drupal-perf-steveoliver)
vs.
Run #519a4774889dd: XHProf Run (Namespace=drupal-perf-steveoliver)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519a4887d3a25Run #519a4774889ddDiffDiff%
Number of Function Calls95 95 0 0.0%
Incl. Wall Time (microsec)1,028,816 204,564 -824,252 -80.1%
Incl. Wall Time (microsec) per call 10,830 2,153 -8,676 -80.1%
Excl. Wall Time (microsec)43,962 8,634 -35,328 -80.4%
Incl. CPU (microsecs)52,002 40,004 -11,998 -23.1%
Incl. CPU (microsecs) per call 547 421 -126 -23.1%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)3,637,168 3,636,360 -808 -0.0%
Incl. MemUse (bytes) per call 38,286 38,277 -9 -0.0%
Excl. MemUse (bytes)-260,904 -260,816 88 0.0%
Incl. PeakMemUse (bytes)4,203,024 4,203,448 424 0.0%
Incl. PeakMemUse (bytes) per call 44,242 44,247 4 0.0%
Excl. PeakMemUse (bytes)7,064 7,064 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% -824,252 -5.4% -11,998 -299.9% -808 -47.9% 424 28.2%
Exclusive Metrics Diff for Current Function-35,328 -4.3% 0 0.0% 88 10.9% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -824,252 -100.0% -11,998 -100.0% -808 -100.0% 424 100.0%
Child functions
unserialize0 N/A% -677,097 -82.1% -3,999 -33.3% -896 -110.9% -304 -71.7%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -110,165 -13.4% -7,999 -66.7% 0 0.0% 728 171.7%
explode0 N/A% -1,662 -0.2% 0 0.0% 0 0.0% 0 0.0%