Diff Report
Run #51c6814c41b47: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51c681e794599: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #51c6814c41b47Run #51c681e794599DiffDiff%
Number of Function Calls 1 1 N/A%
Incl. Wall Time (microsec) 478 478 N/A%
Incl. Wall Time (microsec) per call N/A 478 478 N/A%
Excl. Wall Time (microsec) 27 27 N/A%
Incl. CPU (microsecs) 329 329 N/A%
Incl. CPU (microsecs) per call N/A 329 329 N/A%
Excl. CPU (microsec) 22 22 N/A%
Incl. MemUse (bytes) 44,784 44,784 N/A%
Incl. MemUse (bytes) per call N/A 44,784 44,784 N/A%
Excl. MemUse (bytes) -6,400 -6,400 N/A%
Incl. PeakMemUse (bytes) 43,752 43,752 N/A%
Incl. PeakMemUse (bytes) per call N/A 43,752 43,752 N/A%
Excl. PeakMemUse (bytes) 776 776 N/A%

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@11 7.7% 478 0.0% 329 0.0% 44,784 0.2% 43,752 0.2%
Exclusive Metrics Diff for Current Function27 5.6% 22 6.7% -6,400 -14.3% 776 1.8%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@11 100.0% 478 100.0% 329 100.0% 44,784 100.0% 43,752 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags1 33.3% 359 75.1% 211 64.1% 2,208 4.9% 5,560 12.7%
unserialize@11 33.3% 89 18.6% 91 27.7% 47,832 106.8% 36,888 84.3%
explode1 33.3% 3 0.6% 5 1.5% 1,144 2.6% 528 1.2%