Diff Report
Run #5578e29590a73: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #5578e32524136: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5578e29590a73Run #5578e32524136DiffDiff%
Number of Function Calls121 123 2 1.7%
Incl. Wall Time (microsec)20,845 21,484 639 3.1%
Incl. Wall Time (microsec) per call 172 175 2 1.4%
Excl. Wall Time (microsec)942 958 16 1.7%
Incl. MemUse (bytes)3,898,368 4,151,424 253,056 6.5%
Incl. MemUse (bytes) per call 32,218 33,751 1,533 4.8%
Excl. MemUse (bytes)-598,376 -644,520 -46,144 -7.7%
Incl. PeakMemUse (bytes)4,908,152 5,236,064 327,912 6.7%
Incl. PeakMemUse (bytes) per call 40,563 42,570 2,006 4.9%
Excl. PeakMemUse (bytes)688 656 -32 -4.7%

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::prepareItem2 25.0% 639 4.9% 253,056 44.0% 327,912 64.6%
Exclusive Metrics Diff for Current Function16 2.5% -46,144 -18.2% -32 -0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple2 100.0% 639 100.0% 253,056 100.0% 327,912 100.0%
Child functions
explode2 33.3% 3 0.5% 672 0.3% 0 0.0%
unserialize2 33.3% 623 97.5% 298,432 117.9% 324,624 99.0%
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid2 33.3% -3 -0.5% 96 0.0% 3,320 1.0%