Diff Report
Run #544333b05173f: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #544337f542f97: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #544333b05173fRun #544337f542f97DiffDiff%
Number of Function Calls70 70 0 0.0%
Incl. Wall Time (microsec)9,900 10,298 398 4.0%
Incl. Wall Time (microsec) per call 141 147 6 4.0%
Excl. Wall Time (microsec)1,079 1,179 100 9.3%
Incl. CPU (microsecs)9,529 9,928 399 4.2%
Incl. CPU (microsecs) per call 136 142 6 4.2%
Excl. CPU (microsec)908 1,000 92 10.1%
Incl. MemUse (bytes)1,494,184 1,494,512 328 0.0%
Incl. MemUse (bytes) per call 21,345 21,350 5 0.0%
Excl. MemUse (bytes)-209,736 -209,736 0 0.0%
Incl. PeakMemUse (bytes)1,759,696 1,760,880 1,184 0.1%
Incl. PeakMemUse (bytes) per call 25,139 25,155 17 0.1%
Excl. PeakMemUse (bytes)1,704 1,752 48 2.8%

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% 398 11.8% 399 5.1% 328 0.3% 1,184 1.2%
Exclusive Metrics Diff for Current Function100 25.1% 92 23.1% 0 0.0% 48 4.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 398 100.0% 399 100.0% 328 100.0% 1,184 100.0%
Child functions
unserialize0 N/A% 183 46.0% 152 38.1% 312 95.1% 728 61.5%
spl_autoload_call0 N/A% 82 20.6% 82 20.6% 0 0.0% 0 0.0%
explode0 N/A% 23 5.8% 23 5.8% 0 0.0% 80 6.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 10 2.5% 50 12.5% 16 4.9% 328 27.7%