Diff Report
Run #5198ed6acdf41: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5198eef80c6dc: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5198ed6acdf41Run #5198eef80c6dcDiffDiff%
Number of Function Calls98 98 0 0.0%
Incl. Wall Time (microsec)27,929 27,936 7 0.0%
Incl. Wall Time (microsec) per call 285 285 0 0.0%
Excl. Wall Time (microsec)1,570 1,552 -18 -1.1%
Incl. CPU (microsecs)22,800 22,953 153 0.7%
Incl. CPU (microsecs) per call 233 234 2 0.7%
Excl. CPU (microsec)1,409 1,390 -19 -1.3%
Incl. MemUse (bytes)2,135,296 2,135,288 -8 -0.0%
Incl. MemUse (bytes) per call 21,789 21,789 -0 -0.0%
Excl. MemUse (bytes)-291,824 -291,832 -8 -0.0%
Incl. PeakMemUse (bytes)2,189,416 2,189,232 -184 -0.0%
Incl. PeakMemUse (bytes) per call 22,341 22,339 -2 -0.0%
Excl. PeakMemUse (bytes)4,984 4,968 -16 -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% 7 0.4% 153 3.5% -8 -0.0% -184 -0.6%
Exclusive Metrics Diff for Current Function-18 -257.1% -19 -12.4% -8 -100.0% -16 -8.7%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 7 100.0% 153 100.0% -8 -100.0% -184 -100.0%
Child functions
unserialize0 N/A% 247 3528.6% 285 186.3% -8 -100.0% -456 -247.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -212 -3028.6% -107 -69.9% 0 0.0% 288 156.5%
explode0 N/A% -10 -142.9% -6 -3.9% 8 100.0% 0 0.0%