Diff Report
Run #534ad9c94e95b: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #534ad8dec7444: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #534ad9c94e95bRun #534ad8dec7444DiffDiff%
Number of Function Calls132 132 0 0.0%
Incl. Wall Time (microsec)46,322 46,722 400 0.9%
Incl. Wall Time (microsec) per call 351 354 3 0.9%
Excl. Wall Time (microsec)2,529 2,724 195 7.7%
Incl. CPU (microsecs)40,353 40,361 8 0.0%
Incl. CPU (microsecs) per call 306 306 0 0.0%
Excl. CPU (microsec)2,275 2,304 29 1.3%
Incl. MemUse (bytes)1,893,828 1,893,500 -328 -0.0%
Incl. MemUse (bytes) per call 14,347 14,345 -2 -0.0%
Excl. MemUse (bytes)-472,596 -472,400 196 0.0%
Incl. PeakMemUse (bytes)2,510,188 2,509,800 -388 -0.0%
Incl. PeakMemUse (bytes) per call 19,017 19,014 -3 -0.0%
Excl. PeakMemUse (bytes)3,312 3,312 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% 400 24.3% 8 1.6% -328 -1.4% -388 -1.6%
Exclusive Metrics Diff for Current Function195 48.8% 29 362.5% 196 59.8% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 400 100.0% 8 100.0% -328 -100.0% -388 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 135 33.8% -9 -112.5% 0 0.0% -52 -13.4%
unserialize0 N/A% 42 10.5% -37 -462.5% -524 -159.8% -336 -86.6%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% 19 4.8% 20 250.0% 0 0.0% 0 0.0%
explode0 N/A% 9 2.2% 5 62.5% 0 0.0% 0 0.0%