Diff Report
Run #519eb880e5974: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519eb7a1537f7: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519eb880e5974Run #519eb7a1537f7DiffDiff%
Number of Function Calls112 112 0 0.0%
Incl. Wall Time (microsec)38,286 38,425 139 0.4%
Incl. Wall Time (microsec) per call 342 343 1 0.4%
Excl. Wall Time (microsec)2,490 2,479 -11 -0.4%
Incl. CPU (microsecs)32,460 32,204 -256 -0.8%
Incl. CPU (microsecs) per call 290 288 -2 -0.8%
Excl. CPU (microsec)2,326 2,310 -16 -0.7%
Incl. MemUse (bytes)1,027,704 1,027,756 52 0.0%
Incl. MemUse (bytes) per call 9,176 9,176 0 0.0%
Excl. MemUse (bytes)-289,980 -289,988 -8 -0.0%
Incl. PeakMemUse (bytes)1,488,640 1,469,124 -19,516 -1.3%
Incl. PeakMemUse (bytes) per call 13,291 13,117 -174 -1.3%
Excl. PeakMemUse (bytes)6,080 5,608 -472 -7.8%

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% 139 3.9% -256 -248.5% 52 0.0% -19,516 -12.5%
Exclusive Metrics Diff for Current Function-11 -7.9% -16 -6.2% -8 -15.4% -472 -2.4%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 139 100.0% -256 -100.0% 52 100.0% -19,516 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 214 154.0% -110 -43.0% 0 0.0% -2,384 -12.2%
unserialize0 N/A% -62 -44.6% -131 -51.2% 60 115.4% -16,660 -85.4%
explode0 N/A% -2 -1.4% 1 0.4% 0 0.0% 0 0.0%