Diff Report
Run #523f527beec76: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #523f531e517da: 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 #523f531e517daDiffDiff%
Number of Function Calls115 115 0 0.0%
Incl. Wall Time (microsec)17,855 18,485 630 3.5%
Incl. Wall Time (microsec) per call 155 161 5 3.5%
Excl. Wall Time (microsec)1,614 1,668 54 3.3%
Incl. CPU (microsecs)14,220 14,391 171 1.2%
Incl. CPU (microsecs) per call 124 125 1 1.2%
Excl. CPU (microsec)1,437 1,484 47 3.3%
Incl. MemUse (bytes)1,492,336 1,493,384 1,048 0.1%
Incl. MemUse (bytes) per call 12,977 12,986 9 0.1%
Excl. MemUse (bytes)-263,760 -264,104 -344 -0.1%
Incl. PeakMemUse (bytes)1,859,504 1,858,688 -816 -0.0%
Incl. PeakMemUse (bytes) per call 16,170 16,163 -7 -0.0%
Excl. PeakMemUse (bytes)6,280 6,328 48 0.8%

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% 630 15.5% 171 2.4% 1,048 3.8% -816 -3.1%
Exclusive Metrics Diff for Current Function54 8.6% 47 27.5% -344 -32.8% 48 5.9%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 630 100.0% 171 100.0% 1,048 100.0% -816 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 550 87.3% 99 57.9% 0 0.0% 16 2.0%
unserialize0 N/A% 19 3.0% 24 14.0% 1,368 130.5% -880 -107.8%
explode0 N/A% 7 1.1% 1 0.6% 24 2.3% 0 0.0%