Diff Report
Run #53ccf06f3ae60: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #53ccf1bb00d4b: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #53ccf06f3ae60Run #53ccf1bb00d4bDiffDiff%
Number of Function Calls87 87 0 0.0%
Incl. Wall Time (microsec)23,917 24,114 197 0.8%
Incl. Wall Time (microsec) per call 275 277 2 0.8%
Excl. Wall Time (microsec)811 814 3 0.4%
Incl. CPU (microsecs)22,353 22,575 222 1.0%
Incl. CPU (microsecs) per call 257 259 3 1.0%
Excl. CPU (microsec)696 698 2 0.3%
Incl. MemUse (bytes)5,820,648 5,820,672 24 0.0%
Incl. MemUse (bytes) per call 66,904 66,904 0 0.0%
Excl. MemUse (bytes)-534,120 -533,904 216 0.0%
Incl. PeakMemUse (bytes)6,516,136 6,414,112 -102,024 -1.6%
Incl. PeakMemUse (bytes) per call 74,898 73,725 -1,173 -1.6%
Excl. PeakMemUse (bytes)2,672 2,616 -56 -2.1%

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% 197 13.0% 222 13.6% 24 0.4% -102,024 -950.3%
Exclusive Metrics Diff for Current Function3 1.5% 2 0.9% 216 900.0% -56 -0.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 197 100.0% 222 100.0% 24 100.0% -102,024 -100.0%
Child functions
unserialize0 N/A% 317 160.9% 303 136.5% -200 -833.3% -100,000 -98.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -129 -65.5% -91 -41.0% 8 33.3% -1,968 -1.9%
explode0 N/A% 4 2.0% 6 2.7% 0 0.0% 0 0.0%
Composer\Autoload\ClassLoader::loadClass0 N/A% 2 1.0% 2 0.9% 0 0.0% 0 0.0%