Diff Report
Run #51a287416d8a8: XHProf Run (Namespace=drupal-perf-trevorbradley)
vs.
Run #51a28832b7403: XHProf Run (Namespace=drupal-perf-trevorbradley)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51a287416d8a8Run #51a28832b7403DiffDiff%
Number of Function Calls72 72 0 0.0%
Incl. Wall Time (microsec)16,951 17,456 505 3.0%
Incl. Wall Time (microsec) per call 235 242 7 3.0%
Excl. Wall Time (microsec)940 948 8 0.9%
Incl. CPU (microsecs)36,000 16,000 -20,000 -55.6%
Incl. CPU (microsecs) per call 500 222 -278 -55.6%
Excl. CPU (microsec)4,000 0 -4,000 -100.0%
Incl. MemUse (bytes)1,336,808 1,338,656 1,848 0.1%
Incl. MemUse (bytes) per call 18,567 18,592 26 0.1%
Excl. MemUse (bytes)-180,000 -180,336 -336 -0.2%
Incl. PeakMemUse (bytes)1,338,472 1,349,408 10,936 0.8%
Incl. PeakMemUse (bytes) per call 18,590 18,742 152 0.8%
Excl. PeakMemUse (bytes)3,992 3,992 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. 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% 505 14.3% -20,000 -500.0% 1,848 2.7% 10,936 2.1%
Exclusive Metrics Diff for Current Function8 1.6% -4,000 -20.0% -336 -18.2% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 505 100.0% -20,000 -100.0% 1,848 100.0% 10,936 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 284 56.2% -4,000 -20.0% 16 0.9% 1,064 9.7%
unserialize0 N/A% 214 42.4% -12,000 -60.0% 2,160 116.9% 9,872 90.3%
explode0 N/A% -1 -0.2% 0 0.0% 8 0.4% 0 0.0%