Diff Report
Run #52c2694eecde3: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #52c2677cc22b0: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52c2694eecde3Run #52c2677cc22b0DiffDiff%
Number of Function Calls67 67 0 0.0%
Incl. Wall Time (microsec)11,219 11,686 467 4.2%
Incl. Wall Time (microsec) per call 167 174 7 4.2%
Excl. Wall Time (microsec)1,338 1,406 68 5.1%
Incl. CPU (microsecs)10,922 11,365 443 4.1%
Incl. CPU (microsecs) per call 163 170 7 4.1%
Excl. CPU (microsec)1,243 1,310 67 5.4%
Incl. MemUse (bytes)1,235,592 1,234,816 -776 -0.1%
Incl. MemUse (bytes) per call 18,442 18,430 -12 -0.1%
Excl. MemUse (bytes)-197,456 -197,272 184 0.1%
Incl. PeakMemUse (bytes)1,474,888 1,474,480 -408 -0.0%
Incl. PeakMemUse (bytes) per call 22,013 22,007 -6 -0.0%
Excl. PeakMemUse (bytes)3,672 3,680 8 0.2%

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% 467 1.1% 443 1.1% -776 -1.0% -408 -0.2%
Exclusive Metrics Diff for Current Function68 14.6% 67 15.1% 184 23.7% 8 2.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 467 100.0% 443 100.0% -776 -100.0% -408 -100.0%
Child functions
unserialize0 N/A% 212 45.4% 215 48.5% -960 -123.7% -584 -143.1%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 191 40.9% 173 39.1% -24 -3.1% 168 41.2%
explode0 N/A% -4 -0.9% -12 -2.7% 24 3.1% 0 0.0%