Diff Report
Run #519eb20dce0a3: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #519eb193b2faa: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519eb20dce0a3Run #519eb193b2faaDiffDiff%
Number of Function Calls103 103 0 0.0%
Incl. Wall Time (microsec)23,791 26,001 2,210 9.3%
Incl. Wall Time (microsec) per call 231 252 21 9.3%
Excl. Wall Time (microsec)1,678 1,802 124 7.4%
Incl. CPU (microsecs)19,247 19,950 703 3.7%
Incl. CPU (microsecs) per call 187 194 7 3.7%
Excl. CPU (microsec)1,528 1,664 136 8.9%
Incl. MemUse (bytes)1,965,848 1,968,600 2,752 0.1%
Incl. MemUse (bytes) per call 19,086 19,113 27 0.1%
Excl. MemUse (bytes)-305,056 -306,048 -992 -0.3%
Incl. PeakMemUse (bytes)1,997,408 1,990,968 -6,440 -0.3%
Incl. PeakMemUse (bytes) per call 19,392 19,330 -63 -0.3%
Excl. PeakMemUse (bytes)6,176 6,176 0 0.0%

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::prepareItem0 N/A% 2,210 25.0% 703 4.6% 2,752 0.4% -6,440 -0.9%
Exclusive Metrics Diff for Current Function124 5.6% 136 19.3% -992 -36.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 2,210 100.0% 703 100.0% 2,752 100.0% -6,440 -100.0%
Child functions
unserialize0 N/A% 1,590 71.9% 239 34.0% 3,744 136.0% -6,112 -94.9%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 501 22.7% 342 48.6% 24 0.9% -328 -5.1%
explode0 N/A% -5 -0.2% -14 -2.0% -24 -0.9% 0 0.0%