Diff Report
Run #51ad02c47d041: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51ad024086f90: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51ad02c47d041Run #51ad024086f90DiffDiff%
Number of Function Calls71 71 0 0.0%
Incl. Wall Time (microsec)22,324 22,437 113 0.5%
Incl. Wall Time (microsec) per call 314 316 2 0.5%
Excl. Wall Time (microsec)1,190 1,217 27 2.3%
Incl. CPU (microsecs)18,051 18,539 488 2.7%
Incl. CPU (microsecs) per call 254 261 7 2.7%
Excl. CPU (microsec)1,096 1,080 -16 -1.5%
Incl. MemUse (bytes)1,724,112 1,720,720 -3,392 -0.2%
Incl. MemUse (bytes) per call 24,283 24,235 -48 -0.2%
Excl. MemUse (bytes)-190,024 -189,416 608 0.3%
Incl. PeakMemUse (bytes)2,005,656 2,001,568 -4,088 -0.2%
Incl. PeakMemUse (bytes) per call 28,249 28,191 -58 -0.2%
Excl. PeakMemUse (bytes)3,992 4,040 48 1.2%

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% 113 2.6% 488 15.7% -3,392 -2.1% -4,088 -2.6%
Exclusive Metrics Diff for Current Function27 23.9% -16 -3.3% 608 17.9% 48 1.2%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 113 100.0% 488 100.0% -3,392 -100.0% -4,088 -100.0%
Child functions
unserialize0 N/A% 261 231.0% 460 94.3% -4,000 -117.9% -4,016 -98.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -181 -160.2% 31 6.4% 0 0.0% -120 -2.9%
explode0 N/A% 6 5.3% 13 2.7% 0 0.0% 0 0.0%