Diff Report
Run #518ed14bbba55: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #518eceb4aac68: 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 #518ed14bbba55Run #518eceb4aac68DiffDiff%
Number of Function Calls67 67 0 0.0%
Incl. Wall Time (microsec)17,494 17,516 22 0.1%
Incl. Wall Time (microsec) per call 261 261 0 0.1%
Excl. Wall Time (microsec)991 1,026 35 3.5%
Incl. CPU (microsecs)14,423 14,445 22 0.2%
Incl. CPU (microsecs) per call 215 216 0 0.2%
Excl. CPU (microsec)908 946 38 4.2%
Incl. MemUse (bytes)1,326,648 1,326,632 -16 -0.0%
Incl. MemUse (bytes) per call 19,801 19,800 -0 -0.0%
Excl. MemUse (bytes)-146,800 -146,784 16 0.0%
Incl. PeakMemUse (bytes)1,817,040 1,816,968 -72 -0.0%
Incl. PeakMemUse (bytes) per call 27,120 27,119 -1 -0.0%
Excl. PeakMemUse (bytes)7,600 7,624 24 0.3%

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% 22 8.0% 22 7.1% -16 -0.1% -72 -0.4%
Exclusive Metrics Diff for Current Function35 159.1% 38 172.7% 16 100.0% 24 33.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 22 100.0% 22 100.0% -16 -100.0% -72 -100.0%
Child functions
unserialize0 N/A% -226 -1027.3% -139 -631.8% -32 -200.0% 16 22.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 213 968.2% 124 563.6% 0 0.0% -112 -155.6%
explode0 N/A% 0 0.0% -1 -4.5% 0 0.0% 0 0.0%