Diff Report
Run #51c6814c41b47: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #51c6824f48b42: 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 #51c6824f48b42DiffDiff%
Number of Function Calls 105 105 N/A%
Incl. Wall Time (microsec) 23,516 23,516 N/A%
Incl. Wall Time (microsec) per call N/A 224 224 N/A%
Excl. Wall Time (microsec) 2,246 2,246 N/A%
Incl. CPU (microsecs) 19,917 19,917 N/A%
Incl. CPU (microsecs) per call N/A 190 190 N/A%
Excl. CPU (microsec) 2,102 2,102 N/A%
Incl. MemUse (bytes) 1,867,400 1,867,400 N/A%
Incl. MemUse (bytes) per call N/A 17,785 17,785 N/A%
Excl. MemUse (bytes) -265,656 -265,656 N/A%
Incl. PeakMemUse (bytes) 2,272,272 2,272,272 N/A%
Incl. PeakMemUse (bytes) per call N/A 21,641 21,641 N/A%
Excl. PeakMemUse (bytes) 7,064 7,064 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% 23,516 2.1% 19,917 1.9% 1,867,400 9.8% 2,272,272 11.7%
Exclusive Metrics Diff for Current Function2,246 9.6% 2,102 10.6% -265,656 -14.2% 7,064 0.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple105 100.0% 23,516 100.0% 19,917 100.0% 1,867,400 100.0% 2,272,272 100.0%
Child functions
unserialize105 46.7% 13,487 57.4% 12,312 61.8% 2,056,920 110.1% 2,205,512 97.1%
Drupal\Core\Cache\DatabaseBackend::checksumTags105 46.7% 7,716 32.8% 5,411 27.2% 70,072 3.8% 58,656 2.6%
explode15 6.7% 67 0.3% 92 0.5% 6,064 0.3% 1,040 0.0%