Diff Report
Run #534ad9c94e95b: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #534ad8dec7444: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #534ad9c94e95bRun #534ad8dec7444DiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)1,112 1,131 19 1.7%
Incl. Wall Time (microsec) per call 124 126 2 1.7%
Excl. Wall Time (microsec)130 137 7 5.4%
Incl. CPU (microsecs)979 980 1 0.1%
Incl. CPU (microsecs) per call 109 109 0 0.1%
Excl. CPU (microsec)120 118 -2 -1.7%
Incl. MemUse (bytes)48,812 48,808 -4 -0.0%
Incl. MemUse (bytes) per call 5,424 5,423 -0 -0.0%
Excl. MemUse (bytes)-21,400 -21,400 0 0.0%
Incl. PeakMemUse (bytes)81,308 81,304 -4 -0.0%
Incl. PeakMemUse (bytes) per call 9,034 9,034 -0 -0.0%
Excl. PeakMemUse (bytes)308 308 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem@1 [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@10 N/A% 19 1.2% 1 0.2% -4 -0.0% -4 -0.0%
Exclusive Metrics Diff for Current Function7 36.8% -2 -200.0% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 19 100.0% 1 100.0% -4 -100.0% -4 -100.0%
Child functions
unserialize@10 N/A% 6 31.6% 4 400.0% -4 -100.0% -4 -100.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 5 26.3% -1 -100.0% 0 0.0% 0 0.0%
explode0 N/A% 1 5.3% 0 0.0% 0 0.0% 0 0.0%