Diff Report
Run #52f2e60305388: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #52f2e62cef49a: 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 #52f2e60305388Run #52f2e62cef49aDiffDiff%
Number of Function Calls96 96 0 0.0%
Incl. Wall Time (microsec)12,971 12,439 -532 -4.1%
Incl. Wall Time (microsec) per call 135 130 -6 -4.1%
Excl. Wall Time (microsec)1,246 1,263 17 1.4%
Incl. CPU (microsecs)11,740 11,276 -464 -4.0%
Incl. CPU (microsecs) per call 122 117 -5 -4.0%
Excl. CPU (microsec)1,104 1,133 29 2.6%
Incl. MemUse (bytes)2,488,528 2,488,800 272 0.0%
Incl. MemUse (bytes) per call 25,922 25,925 3 0.0%
Excl. MemUse (bytes)-400,360 -400,464 -104 -0.0%
Incl. PeakMemUse (bytes)2,932,896 2,932,920 24 0.0%
Incl. PeakMemUse (bytes) per call 30,551 30,551 0 0.0%
Excl. PeakMemUse (bytes)6,512 6,584 72 1.1%

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% -532 -23.3% -464 -22.6% 272 0.5% 24 0.0%
Exclusive Metrics Diff for Current Function17 3.2% 29 6.2% -104 -38.2% 72 300.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -532 -100.0% -464 -100.0% 272 100.0% 24 100.0%
Child functions
unserialize0 N/A% -450 -84.6% -454 -97.8% 376 138.2% 8 33.3%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -166 -31.2% -103 -22.2% 0 0.0% -56 -233.3%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 66 12.4% 67 14.4% 0 0.0% 0 0.0%
explode0 N/A% 1 0.2% -3 -0.6% 0 0.0% 0 0.0%