Diff Report
Run #517d51ae434de: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d52998923d: 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 #517d52998923dDiffDiff%
Number of Function Calls58 58 0 0.0%
Incl. Wall Time (microsec)22,758 22,839 81 0.4%
Incl. Wall Time (microsec) per call 392 394 1 0.4%
Excl. Wall Time (microsec)847 858 11 1.3%
Incl. CPU (microsecs)18,664 18,291 -373 -2.0%
Incl. CPU (microsecs) per call 322 315 -6 -2.0%
Excl. CPU (microsec)778 774 -4 -0.5%
Incl. MemUse (bytes)1,459,880 1,458,736 -1,144 -0.1%
Incl. MemUse (bytes) per call 25,170 25,151 -20 -0.1%
Excl. MemUse (bytes)-163,600 -163,464 136 0.1%
Incl. PeakMemUse (bytes)1,918,384 1,920,064 1,680 0.1%
Incl. PeakMemUse (bytes) per call 33,076 33,105 29 0.1%
Excl. PeakMemUse (bytes)6,080 5,992 -88 -1.4%

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% 81 2.4% -373 -14.6% -1,144 -17.2% 1,680 25.1%
Exclusive Metrics Diff for Current Function11 13.6% -4 -1.1% 136 11.9% -88 -5.2%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 81 100.0% -373 -100.0% -1,144 -100.0% 1,680 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 136 167.9% -1 -0.3% -32 -2.8% 624 37.1%
unserialize0 N/A% -66 -81.5% -368 -98.7% -1,272 -111.2% 1,144 68.1%
explode0 N/A% 0 0.0% 0 0.0% 24 2.1% 0 0.0%