Diff Report
Run #519afb15356f3: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #519afa8ec2e5c: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519afb15356f3Run #519afa8ec2e5cDiffDiff%
Number of Function Calls 93 93 N/A%
Incl. Wall Time (microsec) 33,230 33,230 N/A%
Incl. Wall Time (microsec) per call N/A 357 357 N/A%
Excl. Wall Time (microsec) 2,107 2,107 N/A%
Incl. CPU (microsecs) 26,846 26,846 N/A%
Incl. CPU (microsecs) per call N/A 289 289 N/A%
Excl. CPU (microsec) 1,985 1,985 N/A%
Incl. MemUse (bytes) 1,965,784 1,965,784 N/A%
Incl. MemUse (bytes) per call N/A 21,137 21,137 N/A%
Excl. MemUse (bytes) -246,896 -246,896 N/A%
Incl. PeakMemUse (bytes) 2,225,472 2,225,472 N/A%
Incl. PeakMemUse (bytes) per call N/A 23,930 23,930 N/A%
Excl. PeakMemUse (bytes) 6,664 6,664 N/A%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem [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::prepareItem93 29.8% 33,230 6.3% 26,846 5.6% 1,965,784 5.0% 2,225,472 5.7%
Exclusive Metrics Diff for Current Function2,107 6.3% 1,985 7.4% -246,896 -12.6% 6,664 0.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple93 100.0% 33,230 100.0% 26,846 100.0% 1,965,784 100.0% 2,225,472 100.0%
Child functions
unserialize93 44.3% 22,978 69.1% 19,308 71.9% 2,136,328 108.7% 2,161,048 97.1%
Drupal\Core\Cache\DatabaseBackend::checksumTags93 44.3% 8,026 24.2% 5,406 20.1% 67,480 3.4% 56,512 2.5%
explode24 11.4% 119 0.4% 147 0.5% 8,872 0.5% 1,248 0.1%