Diff Report
Run #5192e86ee04ad: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5192e6f7bc551: 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 #5192e86ee04adRun #5192e6f7bc551DiffDiff%
Number of Function Calls70 70 0 0.0%
Incl. Wall Time (microsec)20,102 20,733 631 3.1%
Incl. Wall Time (microsec) per call 287 296 9 3.1%
Excl. Wall Time (microsec)1,083 1,133 50 4.6%
Incl. CPU (microsecs)16,553 16,659 106 0.6%
Incl. CPU (microsecs) per call 236 238 2 0.6%
Excl. CPU (microsec)970 1,031 61 6.3%
Incl. MemUse (bytes)1,393,688 1,393,688 0 0.0%
Incl. MemUse (bytes) per call 19,910 19,910 0 0.0%
Excl. MemUse (bytes)-176,296 -176,296 0 0.0%
Incl. PeakMemUse (bytes)1,961,664 1,961,664 0 0.0%
Incl. PeakMemUse (bytes) per call 28,024 28,024 0 0.0%
Excl. PeakMemUse (bytes)6,824 6,824 0 0.0%

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::prepareItem0 N/A% 631 270.8% 106 7.4% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function50 7.9% 61 57.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 631 100.0% 106 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 418 66.2% 223 210.4% 0 N/A% 0 N/A%
unserialize0 N/A% 159 25.2% -179 -168.9% 0 N/A% 0 N/A%
explode0 N/A% 4 0.6% 1 0.9% 0 N/A% 0 N/A%