Diff Report
Run #523f527beec76: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #523f52fbabfcb: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #523f527beec76Run #523f52fbabfcbDiffDiff%
Number of Function Calls115 115 0 0.0%
Incl. Wall Time (microsec)17,855 18,405 550 3.1%
Incl. Wall Time (microsec) per call 155 160 5 3.1%
Excl. Wall Time (microsec)1,614 1,687 73 4.5%
Incl. CPU (microsecs)14,220 14,432 212 1.5%
Incl. CPU (microsecs) per call 124 125 2 1.5%
Excl. CPU (microsec)1,437 1,501 64 4.5%
Incl. MemUse (bytes)1,492,336 1,492,336 0 0.0%
Incl. MemUse (bytes) per call 12,977 12,977 0 0.0%
Excl. MemUse (bytes)-263,760 -263,760 0 0.0%
Incl. PeakMemUse (bytes)1,859,504 1,859,504 0 0.0%
Incl. PeakMemUse (bytes) per call 16,170 16,170 0 0.0%
Excl. PeakMemUse (bytes)6,280 6,280 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% 550 14.0% 212 2.7% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function73 13.3% 64 30.2% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 550 100.0% 212 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 657 119.5% 316 149.1% 0 N/A% 0 N/A%
unserialize0 N/A% -183 -33.3% -167 -78.8% 0 N/A% 0 N/A%
explode0 N/A% 3 0.5% -1 -0.5% 0 N/A% 0 N/A%