Diff Report
Run #565918537d922: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #5659186b7d6e0: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #565918537d922Run #5659186b7d6e0DiffDiff%
Number of Function Calls2,225 2,225 0 0.0%
Incl. Wall Time (microsec)777,858 799,995 22,137 2.8%
Incl. Wall Time (microsec) per call 350 360 10 2.8%
Excl. Wall Time (microsec)34,192 34,737 545 1.6%
Incl. MemUse (bytes)98,760,752 98,761,920 1,168 0.0%
Incl. MemUse (bytes) per call 44,387 44,387 1 0.0%
Excl. MemUse (bytes)-140,359,248 -140,362,632 -3,384 -0.0%
Incl. PeakMemUse (bytes)215,975,440 216,865,304 889,864 0.4%
Incl. PeakMemUse (bytes) per call 97,068 97,468 400 0.4%
Excl. PeakMemUse (bytes)74,400 74,400 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.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
Drupal\Core\Cache\DatabaseBackend::prepareItem0 N/A% 22,137 4.8% 1,168 0.1% 889,864 58.2%
Exclusive Metrics Diff for Current Function545 2.5% -3,384 -289.7% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 22,137 100.0% 1,168 100.0% 889,864 100.0%
Child functions
unserialize0 N/A% 12,398 56.0% 9,024 772.6% 832,456 93.5%
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid0 N/A% 9,444 42.7% -4,472 -382.9% 57,408 6.5%
explode0 N/A% -218 -1.0% 0 0.0% 0 0.0%
spl_autoload_call0 N/A% -32 -0.1% 0 0.0% 0 0.0%