Diff Report
Run #531ccb2cb8e3d: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #531ccba053790: XHProf Run (Namespace=drupal-perf-cottser)
Tip
Click a function name below to drill down.

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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #531ccb2cb8e3dRun #531ccba053790DiffDiff%
Number of Function Calls70 70 0 0.0%
Incl. Wall Time (microsec)11,144 11,339 195 1.7%
Incl. Wall Time (microsec) per call 159 162 3 1.7%
Excl. Wall Time (microsec)748 750 2 0.3%
Incl. CPU (microsecs)9,819 9,997 178 1.8%
Incl. CPU (microsecs) per call 140 143 3 1.8%
Excl. CPU (microsec)649 640 -9 -1.4%
Incl. MemUse (bytes)2,239,888 2,239,888 0 0.0%
Incl. MemUse (bytes) per call 31,998 31,998 0 0.0%
Excl. MemUse (bytes)-282,352 -282,352 0 0.0%
Incl. PeakMemUse (bytes)2,633,568 2,633,568 0 0.0%
Incl. PeakMemUse (bytes) per call 37,622 37,622 0 0.0%
Excl. PeakMemUse (bytes)7,800 7,800 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% 195 336.2% 178 301.7% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function2 1.0% -9 -5.1% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 195 100.0% 178 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 170 87.2% 185 103.9% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 23 11.8% 11 6.2% 0 N/A% 0 N/A%
explode0 N/A% 0 0.0% -9 -5.1% 0 N/A% 0 N/A%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 0 0.0% 0 0.0% 0 N/A% 0 N/A%