Diff Report
Run #534ad8dec7444: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #534ad972c8c0d: 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 #534ad8dec7444Run #534ad972c8c0dDiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)1,131 1,121 -10 -0.9%
Incl. Wall Time (microsec) per call 126 125 -1 -0.9%
Excl. Wall Time (microsec)137 136 -1 -0.7%
Incl. CPU (microsecs)980 965 -15 -1.5%
Incl. CPU (microsecs) per call 109 107 -2 -1.5%
Excl. CPU (microsec)118 114 -4 -3.4%
Incl. MemUse (bytes)48,808 48,808 0 0.0%
Incl. MemUse (bytes) per call 5,423 5,423 0 0.0%
Excl. MemUse (bytes)-21,400 -21,400 0 0.0%
Incl. PeakMemUse (bytes)81,304 81,304 0 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% -10 -0.7% -15 -2.6% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-1 -10.0% -4 -26.7% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -10 -100.0% -15 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize@10 N/A% -13 -130.0% -13 -86.7% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 4 40.0% 1 6.7% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 1 6.7% 0 N/A% 0 N/A%