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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51774c26bf054Run #51774cdfb1214DiffDiff%
Number of Function Calls128 128 0 0.0%
Incl. Wall Time (microsec)25,557 24,894 -663 -2.6%
Incl. Wall Time (microsec) per call 200 194 -5 -2.6%
Excl. Wall Time (microsec)1,596 1,660 64 4.0%
Incl. CPU (microsecs)21,523 21,030 -493 -2.3%
Incl. CPU (microsecs) per call 168 164 -4 -2.3%
Excl. CPU (microsec)1,447 1,531 84 5.8%
Incl. MemUse (bytes)1,911,728 1,912,848 1,120 0.1%
Incl. MemUse (bytes) per call 14,935 14,944 9 0.1%
Excl. MemUse (bytes)-425,936 -426,144 -208 -0.0%
Incl. PeakMemUse (bytes)2,532,304 2,528,832 -3,472 -0.1%
Incl. PeakMemUse (bytes) per call 19,784 19,757 -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 Function64 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%