Diff Report
Run #519e636f9416a: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519e62c02d767: 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 #519e636f9416aRun #519e62c02d767DiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)356 381 25 7.0%
Incl. Wall Time (microsec) per call 51 54 4 7.0%
Excl. Wall Time (microsec)89 88 -1 -1.1%
Incl. CPU (microsecs)364 387 23 6.3%
Incl. CPU (microsecs) per call 52 55 3 6.3%
Excl. CPU (microsec)85 78 -7 -8.2%
Incl. MemUse (bytes)36,080 36,080 0 0.0%
Incl. MemUse (bytes) per call 5,154 5,154 0 0.0%
Excl. MemUse (bytes)-4,576 -4,576 0 0.0%
Incl. PeakMemUse (bytes)28,552 28,552 0 0.0%
Incl. PeakMemUse (bytes) per call 4,079 4,079 0 0.0%
Excl. PeakMemUse (bytes)1,272 1,272 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% 25 0.2% 23 0.2% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-1 -4.0% -7 -30.4% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% 25 100.0% 23 100.0% 0 N/A% 0 N/A%
Child functions
unserialize@10 N/A% 26 104.0% 28 121.7% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 0 0.0% 2 8.7% 0 N/A% 0 N/A%