Diff Report
Run #519fc53e46a65: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fc84e17238: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip
Click a function name below to drill down.

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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519fc53e46a65Run #519fc84e17238DiffDiff%
Number of Function Calls68 68 0 0.0%
Incl. Wall Time (microsec)7,905 7,953 48 0.6%
Incl. Wall Time (microsec) per call 116 117 1 0.6%
Excl. Wall Time (microsec)654 651 -3 -0.5%
Incl. CPU (microsecs)8,000 8,000 0 0.0%
Incl. CPU (microsecs) per call 118 118 0 0.0%
Excl. CPU (microsec)0 4,000 4,000 N/A%
Incl. MemUse (bytes)1,495,624 1,495,560 -64 -0.0%
Incl. MemUse (bytes) per call 21,994 21,994 -1 -0.0%
Excl. MemUse (bytes)-189,752 -189,752 0 0.0%
Incl. PeakMemUse (bytes)1,967,512 1,967,200 -312 -0.0%
Incl. PeakMemUse (bytes) per call 28,934 28,929 -5 -0.0%
Excl. PeakMemUse (bytes)6,504 6,504 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% 48 8.9% 0 0.0% -64 -0.8% -312 -3.0%
Exclusive Metrics Diff for Current Function-3 -6.2% 4,000 N/A% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 48 100.0% 0 N/A% -64 -100.0% -312 -100.0%
Child functions
unserialize0 N/A% -6 -12.5% -4,000 N/A% -64 -100.0% -144 -46.2%
explode0 N/A% 0 0.0% 0 N/A% 0 0.0% 0 0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 57 118.8% 0 N/A% 0 0.0% -168 -53.8%