Diff Report
Run #523bd0c5929e9: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #523bd15c0308e: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #523bd0c5929e9Run #523bd15c0308eDiffDiff%
Number of Function Calls69 69 0 0.0%
Incl. Wall Time (microsec)15,548 16,078 530 3.4%
Incl. Wall Time (microsec) per call 225 233 8 3.4%
Excl. Wall Time (microsec)1,406 1,420 14 1.0%
Incl. CPU (microsecs)12,989 13,251 262 2.0%
Incl. CPU (microsecs) per call 188 192 4 2.0%
Excl. CPU (microsec)1,324 1,328 4 0.3%
Incl. MemUse (bytes)1,656,192 1,656,744 552 0.0%
Incl. MemUse (bytes) per call 24,003 24,011 8 0.0%
Excl. MemUse (bytes)-242,800 -242,920 -120 -0.0%
Incl. PeakMemUse (bytes)2,109,256 2,109,776 520 0.0%
Incl. PeakMemUse (bytes) per call 30,569 30,576 8 0.0%
Excl. PeakMemUse (bytes)6,632 6,632 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% 530 23.8% 262 10.6% 552 1.0% 520 0.9%
Exclusive Metrics Diff for Current Function14 2.6% 4 1.5% -120 -21.7% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 530 100.0% 262 100.0% 552 100.0% 520 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 524 98.9% 256 97.7% 0 0.0% 120 23.1%
unserialize0 N/A% -34 -6.4% -33 -12.6% 672 121.7% 400 76.9%
explode0 N/A% 26 4.9% 35 13.4% 0 0.0% 0 0.0%