Diff Report
Run #51ec517fc2424: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51ec52a09990a: 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 #51ec517fc2424Run #51ec52a09990aDiffDiff%
Number of Function Calls124 124 0 0.0%
Incl. Wall Time (microsec)19,894 19,096 -798 -4.0%
Incl. Wall Time (microsec) per call 160 154 -6 -4.0%
Excl. Wall Time (microsec)1,546 1,543 -3 -0.2%
Incl. CPU (microsecs)18,097 17,742 -355 -2.0%
Incl. CPU (microsecs) per call 146 143 -3 -2.0%
Excl. CPU (microsec)1,417 1,406 -11 -0.8%
Incl. MemUse (bytes)2,479,960 2,480,048 88 0.0%
Incl. MemUse (bytes) per call 20,000 20,000 1 0.0%
Excl. MemUse (bytes)-369,728 -370,064 -336 -0.1%
Incl. PeakMemUse (bytes)2,863,640 2,849,824 -13,816 -0.5%
Incl. PeakMemUse (bytes) per call 23,094 22,982 -111 -0.5%
Excl. PeakMemUse (bytes)8,496 8,440 -56 -0.7%

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% -798 -19.5% -355 -8.3% 88 0.4% -13,816 -60.1%
Exclusive Metrics Diff for Current Function-3 -0.4% -11 -3.1% -336 -381.8% -56 -0.4%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -798 -100.0% -355 -100.0% 88 100.0% -13,816 -100.0%
Child functions
unserialize0 N/A% -536 -67.2% -273 -76.9% 304 345.5% -13,688 -99.1%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -261 -32.7% -74 -20.8% 120 136.4% -72 -0.5%
explode0 N/A% 2 0.3% 3 0.8% 0 0.0% 0 0.0%