Diff Report
Run #51774cdfb1214: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51774c26bf054: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51774cdfb1214Run #51774c26bf054DiffDiff%
Number of Function Calls128 128 0 0.0%
Incl. Wall Time (microsec)24,894 25,557 663 2.7%
Incl. Wall Time (microsec) per call 194 200 5 2.7%
Excl. Wall Time (microsec)1,660 1,596 -64 -3.9%
Incl. CPU (microsecs)21,030 21,523 493 2.3%
Incl. CPU (microsecs) per call 164 168 4 2.3%
Excl. CPU (microsec)1,531 1,447 -84 -5.5%
Incl. MemUse (bytes)1,912,848 1,911,728 -1,120 -0.1%
Incl. MemUse (bytes) per call 14,944 14,935 -9 -0.1%
Excl. MemUse (bytes)-426,144 -425,936 208 0.0%
Incl. PeakMemUse (bytes)2,528,832 2,532,304 3,472 0.1%
Incl. PeakMemUse (bytes) per call 19,757 19,784 27 0.1%
Excl. PeakMemUse (bytes)7,360 7,360 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% 663 2.7% 493 2.1% -1,120 -12.5% 3,472 29.3%
Exclusive Metrics Diff for Current Function-64 -9.7% -84 -17.0% 208 18.6% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 663 100.0% 493 100.0% -1,120 -100.0% 3,472 100.0%
Child functions
unserialize0 N/A% 472 71.2% 450 91.3% -1,328 -118.6% 3,368 97.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 260 39.2% 136 27.6% 0 0.0% 104 3.0%
explode0 N/A% -5 -0.8% -9 -1.8% 0 0.0% 0 0.0%