Diff Report
Run #51abc4cb0a647: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51abc588c7973: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #51abc4cb0a647Run #51abc588c7973DiffDiff%
Number of Function Calls8 8 0 0.0%
Incl. Wall Time (microsec)919 830 -89 -9.7%
Incl. Wall Time (microsec) per call 115 104 -11 -9.7%
Excl. Wall Time (microsec)102 117 15 14.7%
Incl. CPU (microsecs)747 738 -9 -1.2%
Incl. CPU (microsecs) per call 93 92 -1 -1.2%
Excl. CPU (microsec)93 104 11 11.8%
Incl. MemUse (bytes)146,992 146,992 0 0.0%
Incl. MemUse (bytes) per call 18,374 18,374 0 0.0%
Excl. MemUse (bytes)-19,640 -19,640 0 0.0%
Incl. PeakMemUse (bytes)148,976 148,976 0 0.0%
Incl. PeakMemUse (bytes) per call 18,622 18,622 0 0.0%
Excl. PeakMemUse (bytes)2,208 2,208 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% -89 -161.8% -9 -0.5% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function15 16.9% 11 122.2% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -89 -100.0% -9 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -68 -76.4% 13 144.4% 0 N/A% 0 N/A%
unserialize@10 N/A% -36 -40.4% -34 -377.8% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% 1 11.1% 0 N/A% 0 N/A%