Diff Report
Run #52c8629919553: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c862ea26981: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52c8629919553Run #52c862ea26981DiffDiff%
Number of Function Calls88 88 0 0.0%
Incl. Wall Time (microsec)8,507 8,600 93 1.1%
Incl. Wall Time (microsec) per call 97 98 1 1.1%
Excl. Wall Time (microsec)877 879 2 0.2%
Incl. CPU (microsecs)7,544 7,649 105 1.4%
Incl. CPU (microsecs) per call 86 87 1 1.4%
Excl. CPU (microsec)837 787 -50 -6.0%
Incl. MemUse (bytes)1,695,816 1,692,136 -3,680 -0.2%
Incl. MemUse (bytes) per call 19,271 19,229 -42 -0.2%
Excl. MemUse (bytes)-281,104 -280,280 824 0.3%
Incl. PeakMemUse (bytes)1,967,608 1,950,968 -16,640 -0.8%
Incl. PeakMemUse (bytes) per call 22,359 22,170 -189 -0.8%
Excl. PeakMemUse (bytes)6,848 6,848 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% 93 145.3% 105 59.0% -3,680 -13.4% -16,640 -64.2%
Exclusive Metrics Diff for Current Function2 2.2% -50 -47.6% 824 22.4% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 93 100.0% 105 100.0% -3,680 -100.0% -16,640 -100.0%
Child functions
unserialize0 N/A% 84 90.3% 106 101.0% -4,504 -122.4% -14,784 -88.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 7 7.5% 47 44.8% 0 0.0% -1,856 -11.2%
explode0 N/A% 0 0.0% 2 1.9% 0 0.0% 0 0.0%