Diff Report
Run #519fedcae68c3: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #519ff0715b88b: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519fedcae68c3Run #519ff0715b88bDiffDiff%
Number of Function Calls77 77 0 0.0%
Incl. Wall Time (microsec)19,352 18,061 -1,291 -6.7%
Incl. Wall Time (microsec) per call 251 235 -17 -6.7%
Excl. Wall Time (microsec)1,422 1,332 -90 -6.3%
Incl. CPU (microsecs)14,666 14,253 -413 -2.8%
Incl. CPU (microsecs) per call 190 185 -5 -2.8%
Excl. CPU (microsec)1,297 1,234 -63 -4.9%
Incl. MemUse (bytes)1,422,672 1,425,696 3,024 0.2%
Incl. MemUse (bytes) per call 18,476 18,516 39 0.2%
Excl. MemUse (bytes)-197,712 -198,432 -720 -0.4%
Incl. PeakMemUse (bytes)1,670,800 1,687,712 16,912 1.0%
Incl. PeakMemUse (bytes) per call 21,699 21,918 220 1.0%
Excl. PeakMemUse (bytes)4,728 4,704 -24 -0.5%

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% -1,291 -103.4% -413 -27.9% 3,024 3.7% 16,912 20.3%
Exclusive Metrics Diff for Current Function-90 -7.0% -63 -15.3% -720 -23.8% -24 -0.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -1,291 -100.0% -413 -100.0% 3,024 100.0% 16,912 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -950 -73.6% -162 -39.2% 0 0.0% 256 1.5%
unserialize0 N/A% -214 -16.6% -140 -33.9% 3,744 123.8% 16,680 98.6%
explode0 N/A% -37 -2.9% -48 -11.6% 0 0.0% 0 0.0%