Diff Report
Run #519e62c02d767: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519e636f9416a: 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 #519e62c02d767Run #519e636f9416aDiffDiff%
Number of Function Calls7 7 0 0.0%
Incl. Wall Time (microsec)381 356 -25 -6.6%
Incl. Wall Time (microsec) per call 54 51 -4 -6.6%
Excl. Wall Time (microsec)88 89 1 1.1%
Incl. CPU (microsecs)387 364 -23 -5.9%
Incl. CPU (microsecs) per call 55 52 -3 -5.9%
Excl. CPU (microsec)78 85 7 9.0%
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 Function1 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%