Diff Report
Run #51c6814c41b47: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51c681e794599: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51c6814c41b47Run #51c681e794599DiffDiff%
Number of Function Calls 105 105 N/A%
Incl. Wall Time (microsec) 22,731 22,731 N/A%
Incl. Wall Time (microsec) per call N/A 216 216 N/A%
Excl. Wall Time (microsec) 2,242 2,242 N/A%
Incl. CPU (microsecs) 19,525 19,525 N/A%
Incl. CPU (microsecs) per call N/A 186 186 N/A%
Excl. CPU (microsec) 2,109 2,109 N/A%
Incl. MemUse (bytes) 1,865,912 1,865,912 N/A%
Incl. MemUse (bytes) per call N/A 17,771 17,771 N/A%
Excl. MemUse (bytes) -265,464 -265,464 N/A%
Incl. PeakMemUse (bytes) 2,271,488 2,271,488 N/A%
Incl. PeakMemUse (bytes) per call N/A 21,633 21,633 N/A%
Excl. PeakMemUse (bytes) 7,128 7,128 N/A%

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::prepareItem105 31.0% 22,731 2.0% 19,525 1.8% 1,865,912 9.8% 2,271,488 11.8%
Exclusive Metrics Diff for Current Function2,242 9.9% 2,109 10.8% -265,464 -14.2% 7,128 0.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple105 100.0% 22,731 100.0% 19,525 100.0% 1,865,912 100.0% 2,271,488 100.0%
Child functions
unserialize105 46.7% 13,076 57.5% 12,142 62.2% 2,055,240 110.1% 2,204,520 97.1%
Drupal\Core\Cache\DatabaseBackend::checksumTags105 46.7% 7,349 32.3% 5,184 26.6% 70,072 3.8% 58,800 2.6%
explode15 6.7% 64 0.3% 90 0.5% 6,064 0.3% 1,040 0.0%