Diff Report
Run #531ee5f3237b0: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #531ee657ba49e: 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 #531ee5f3237b0Run #531ee657ba49eDiffDiff%
Number of Function Calls82 83 1 1.2%
Incl. Wall Time (microsec)11,706 11,516 -190 -1.6%
Incl. Wall Time (microsec) per call 143 139 -4 -2.8%
Excl. Wall Time (microsec)848 842 -6 -0.7%
Incl. CPU (microsecs)10,378 10,197 -181 -1.7%
Incl. CPU (microsecs) per call 127 123 -4 -2.9%
Excl. CPU (microsec)745 755 10 1.3%
Incl. MemUse (bytes)2,140,432 2,243,584 103,152 4.8%
Incl. MemUse (bytes) per call 26,103 27,031 928 3.6%
Excl. MemUse (bytes)-281,264 -286,256 -4,992 -1.8%
Incl. PeakMemUse (bytes)2,600,536 2,672,320 71,784 2.8%
Incl. PeakMemUse (bytes) per call 31,714 32,197 483 1.5%
Excl. PeakMemUse (bytes)8,240 8,328 88 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::prepareItem1 33.3% -190 -7.5% -181 -6.0% 103,152 135.1% 71,784 91.7%
Exclusive Metrics Diff for Current Function-6 -3.2% 10 5.5% -4,992 -4.8% 88 0.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple1 100.0% -190 -100.0% -181 -100.0% 103,152 100.0% 71,784 100.0%
Child functions
unserialize1 50.0% -107 -56.3% -106 -58.6% 107,616 104.3% 76,552 106.6%
Drupal\Core\Cache\DatabaseBackend::checksumTags1 50.0% -81 -42.6% -82 -45.3% 520 0.5% -4,896 -6.8%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 0.0% 4 2.1% 3 1.7% 0 0.0% 72 0.1%
explode0 0.0% 0 0.0% -6 -3.3% 8 0.0% -32 -0.0%