Diff Report
Run #519fe7ae1f6cc: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519fe8e1e5eca: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519fe7ae1f6ccRun #519fe8e1e5ecaDiffDiff%
Number of Function Calls54 54 0 0.0%
Incl. Wall Time (microsec)7,944 8,092 148 1.9%
Incl. Wall Time (microsec) per call 147 150 3 1.9%
Excl. Wall Time (microsec)951 959 8 0.8%
Incl. CPU (microsecs)7,128 7,304 176 2.5%
Incl. CPU (microsecs) per call 132 135 3 2.5%
Excl. CPU (microsec)868 889 21 2.4%
Incl. MemUse (bytes)752,296 752,224 -72 -0.0%
Incl. MemUse (bytes) per call 13,931 13,930 -1 -0.0%
Excl. MemUse (bytes)-119,568 -119,568 0 0.0%
Incl. PeakMemUse (bytes)1,107,872 1,108,024 152 0.0%
Incl. PeakMemUse (bytes) per call 20,516 20,519 3 0.0%
Excl. PeakMemUse (bytes)4,584 4,584 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% 148 54.0% 176 67.7% -72 -450.0% 152 237.5%
Exclusive Metrics Diff for Current Function8 5.4% 21 11.9% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 148 100.0% 176 100.0% -72 -100.0% 152 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 75 50.7% 84 47.7% 0 0.0% 0 0.0%
unserialize0 N/A% 65 43.9% 66 37.5% -72 -100.0% 152 100.0%
explode0 N/A% 0 0.0% 5 2.8% 0 0.0% 0 0.0%