Diff Report
Run #51aad15cb89bb: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51aad207381a1: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem@1

Drupal\Core\Cache\DatabaseBackend::prepareItem@1Run #51aad15cb89bbRun #51aad207381a1DiffDiff%
Number of Function Calls9 9 0 0.0%
Incl. Wall Time (microsec)1,506 1,458 -48 -3.2%
Incl. Wall Time (microsec) per call 167 162 -5 -3.2%
Excl. Wall Time (microsec)130 138 8 6.2%
Incl. CPU (microsecs)1,206 1,193 -13 -1.1%
Incl. CPU (microsecs) per call 134 133 -1 -1.1%
Excl. CPU (microsec)113 118 5 4.4%
Incl. MemUse (bytes)271,152 271,152 0 0.0%
Incl. MemUse (bytes) per call 30,128 30,128 0 0.0%
Excl. MemUse (bytes)-42,136 -42,136 0 0.0%
Incl. PeakMemUse (bytes)296,168 296,168 0 0.0%
Incl. PeakMemUse (bytes) per call 32,908 32,908 0 0.0%
Excl. PeakMemUse (bytes)2,272 2,272 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::prepareItem@1 [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::prepareItem@10 N/A% -48 -5.8% -13 -2.7% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function8 16.7% 5 38.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple@10 N/A% -48 -100.0% -13 -100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -30 -62.5% 4 30.8% 0 N/A% 0 N/A%
unserialize@10 N/A% -25 -52.1% -23 -176.9% 0 N/A% 0 N/A%
explode0 N/A% -1 -2.1% 1 7.7% 0 N/A% 0 N/A%