Diff Report
Run #519a4774889dd: XHProf Run (Namespace=drupal-perf-steveoliver)
vs.
Run #519a4887d3a25: XHProf Run (Namespace=drupal-perf-steveoliver)
Tip
Click a function name below to drill down.

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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519a4774889ddRun #519a4887d3a25DiffDiff%
Number of Function Calls95 95 0 0.0%
Incl. Wall Time (microsec)204,564 1,028,816 824,252 402.9%
Incl. Wall Time (microsec) per call 2,153 10,830 8,676 402.9%
Excl. Wall Time (microsec)8,634 43,962 35,328 409.2%
Incl. CPU (microsecs)40,004 52,002 11,998 30.0%
Incl. CPU (microsecs) per call 421 547 126 30.0%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)3,636,360 3,637,168 808 0.0%
Incl. MemUse (bytes) per call 38,277 38,286 9 0.0%
Excl. MemUse (bytes)-260,816 -260,904 -88 -0.0%
Incl. PeakMemUse (bytes)4,203,448 4,203,024 -424 -0.0%
Incl. PeakMemUse (bytes) per call 44,247 44,242 -4 -0.0%
Excl. PeakMemUse (bytes)7,064 7,064 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% 824,252 5.4% 11,998 299.9% 808 47.9% -424 -28.2%
Exclusive Metrics Diff for Current Function35,328 4.3% 0 0.0% -88 -10.9% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 824,252 100.0% 11,998 100.0% 808 100.0% -424 -100.0%
Child functions
unserialize0 N/A% 677,097 82.1% 3,999 33.3% 896 110.9% 304 71.7%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 110,165 13.4% 7,999 66.7% 0 0.0% -728 -171.7%
explode0 N/A% 1,662 0.2% 0 0.0% 0 0.0% 0 0.0%