Diff Report
Run #517d51ae434de: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d52b5a5611: 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 #517d51ae434deRun #517d52b5a5611DiffDiff%
Number of Function Calls58 58 0 0.0%
Incl. Wall Time (microsec)22,758 22,640 -118 -0.5%
Incl. Wall Time (microsec) per call 392 390 -2 -0.5%
Excl. Wall Time (microsec)847 829 -18 -2.1%
Incl. CPU (microsecs)18,664 18,643 -21 -0.1%
Incl. CPU (microsecs) per call 322 321 -0 -0.1%
Excl. CPU (microsec)778 756 -22 -2.8%
Incl. MemUse (bytes)1,459,880 1,458,696 -1,184 -0.1%
Incl. MemUse (bytes) per call 25,170 25,150 -20 -0.1%
Excl. MemUse (bytes)-163,600 -163,464 136 0.1%
Incl. PeakMemUse (bytes)1,918,384 1,919,624 1,240 0.1%
Incl. PeakMemUse (bytes) per call 33,076 33,097 21 0.1%
Excl. PeakMemUse (bytes)6,080 6,000 -80 -1.3%

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% -118 -4.9% -21 -1.5% -1,184 -11.5% 1,240 12.1%
Exclusive Metrics Diff for Current Function-18 -15.3% -22 -104.8% 136 11.5% -80 -6.5%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -118 -100.0% -21 -100.0% -1,184 -100.0% 1,240 100.0%
Child functions
unserialize0 N/A% 161 136.4% 85 404.8% -1,336 -112.8% 1,056 85.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -260 -220.3% -81 -385.7% -8 -0.7% 264 21.3%
explode0 N/A% -1 -0.8% -3 -14.3% 24 2.0% 0 0.0%