Diff Report
Run #538e3b37c1a66: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #538e3ac0de109: 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 #538e3b37c1a66Run #538e3ac0de109DiffDiff%
Number of Function Calls60 58 -2 -3.3%
Incl. Wall Time (microsec)18,075 17,892 -183 -1.0%
Incl. Wall Time (microsec) per call 301 308 7 2.4%
Excl. Wall Time (microsec)747 723 -24 -3.2%
Incl. CPU (microsecs)16,415 16,313 -102 -0.6%
Incl. CPU (microsecs) per call 274 281 8 2.8%
Excl. CPU (microsec)660 619 -41 -6.2%
Incl. MemUse (bytes)3,240,888 3,238,920 -1,968 -0.1%
Incl. MemUse (bytes) per call 54,015 55,843 1,829 3.4%
Excl. MemUse (bytes)-372,360 -371,480 880 0.2%
Incl. PeakMemUse (bytes)3,802,608 3,797,680 -4,928 -0.1%
Incl. PeakMemUse (bytes) per call 63,377 65,477 2,100 3.3%
Excl. PeakMemUse (bytes)5,680 5,464 -216 -3.8%

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::prepareItem-2 -33.3% -183 -4.3% -102 -2.8% -1,968 -1.8% -4,928 -4.2%
Exclusive Metrics Diff for Current Function-24 -13.1% -41 -40.2% 880 44.7% -216 -4.4%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple-2 -100.0% -183 -100.0% -102 -100.0% -1,968 -100.0% -4,928 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags-2 -50.0% -129 -70.5% -58 -56.9% -976 -49.6% 80 1.6%
unserialize-2 -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%