Diff Report
Run #538e3ac0de109: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #538e3b37c1a66: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #538e3ac0de109Run #538e3b37c1a66DiffDiff%
Number of Function Calls58 60 2 3.4%
Incl. Wall Time (microsec)17,892 18,075 183 1.0%
Incl. Wall Time (microsec) per call 308 301 -7 -2.3%
Excl. Wall Time (microsec)723 747 24 3.3%
Incl. CPU (microsecs)16,313 16,415 102 0.6%
Incl. CPU (microsecs) per call 281 274 -8 -2.7%
Excl. CPU (microsec)619 660 41 6.6%
Incl. MemUse (bytes)3,238,920 3,240,888 1,968 0.1%
Incl. MemUse (bytes) per call 55,843 54,015 -1,829 -3.3%
Excl. MemUse (bytes)-371,480 -372,360 -880 -0.2%
Incl. PeakMemUse (bytes)3,797,680 3,802,608 4,928 0.1%
Incl. PeakMemUse (bytes) per call 65,477 63,377 -2,100 -3.2%
Excl. PeakMemUse (bytes)5,464 5,680 216 4.0%

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::prepareItem2 33.3% 183 4.3% 102 2.8% 1,968 1.8% 4,928 4.2%
Exclusive Metrics Diff for Current Function24 13.1% 41 40.2% -880 -44.7% 216 4.4%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple2 100.0% 183 100.0% 102 100.0% 1,968 100.0% 4,928 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags2 50.0% 129 70.5% 58 56.9% 976 49.6% -80 -1.6%
unserialize2 50.0% 29 15.8% 7 6.9% 1,872 95.1% 4,792 97.2%
explode0 0.0% 2 1.1% -3 -2.9% 0 0.0% 0 0.0%
Composer\Autoload\ClassLoader::loadClass0 0.0% -1 -0.5% -1 -1.0% 0 0.0% 0 0.0%