Diff Report
Run #52d4b1f732b14: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d4b18f32fb6: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52d4b1f732b14Run #52d4b18f32fb6DiffDiff%
Number of Function Calls106 107 1 0.9%
Incl. Wall Time (microsec)9,927 9,799 -128 -1.3%
Incl. Wall Time (microsec) per call 94 92 -2 -2.2%
Excl. Wall Time (microsec)959 939 -20 -2.1%
Incl. CPU (microsecs)9,200 9,080 -120 -1.3%
Incl. CPU (microsecs) per call 87 85 -2 -2.2%
Excl. CPU (microsec)840 843 3 0.4%
Incl. MemUse (bytes)1,840,712 1,840,648 -64 -0.0%
Incl. MemUse (bytes) per call 17,365 17,202 -163 -0.9%
Excl. MemUse (bytes)-259,592 -259,984 -392 -0.2%
Incl. PeakMemUse (bytes)2,261,376 2,272,544 11,168 0.5%
Incl. PeakMemUse (bytes) per call 21,334 21,239 -95 -0.4%
Excl. PeakMemUse (bytes)7,928 7,856 -72 -0.9%

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::prepareItem1 33.3% -128 -7.0% -120 -6.5% -64 -0.1% 11,168 13.1%
Exclusive Metrics Diff for Current Function-20 -15.6% 3 2.5% -392 -612.5% -72 -0.6%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple1 100.0% -128 -100.0% -120 -100.0% -64 -100.0% 11,168 100.0%
Child functions
unserialize1 50.0% -131 -102.3% -136 -113.3% -152 -237.5% 11,208 100.4%
Drupal\Core\Cache\DatabaseBackend::checksumTags1 50.0% 23 18.0% 8 6.7% 488 762.5% 32 0.3%
explode0 0.0% 0 0.0% 5 4.2% -8 -12.5% 0 0.0%