Diff Report
Run #51fdbca2b5409: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51fdbd76c2eed: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51fdbca2b5409Run #51fdbd76c2eedDiffDiff%
Number of Function Calls123 123 0 0.0%
Incl. Wall Time (microsec)23,107 22,785 -322 -1.4%
Incl. Wall Time (microsec) per call 188 185 -3 -1.4%
Excl. Wall Time (microsec)1,495 1,506 11 0.7%
Incl. CPU (microsecs)19,352 18,923 -429 -2.2%
Incl. CPU (microsecs) per call 157 154 -3 -2.2%
Excl. CPU (microsec)1,353 1,348 -5 -0.4%
Incl. MemUse (bytes)2,207,808 2,207,808 0 0.0%
Incl. MemUse (bytes) per call 17,950 17,950 0 0.0%
Excl. MemUse (bytes)-259,320 -259,320 0 0.0%
Incl. PeakMemUse (bytes)2,882,312 2,882,312 0 0.0%
Incl. PeakMemUse (bytes) per call 23,433 23,433 0 0.0%
Excl. PeakMemUse (bytes)6,888 6,888 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% -322 -48.5% -429 -28.4% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function11 3.4% -5 -1.2% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -322 -100.0% -429 -100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% -170 -52.8% -277 -64.6% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -127 -39.4% -107 -24.9% 0 N/A% 0 N/A%
explode0 N/A% -36 -11.2% -40 -9.3% 0 N/A% 0 N/A%