Diff Report
Run #51aad15cb89bb: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51aad231c9c46: XHProf Run (Namespace=drupal-perf-cottser)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51aad15cb89bbRun #51aad231c9c46DiffDiff%
Number of Function Calls59 59 0 0.0%
Incl. Wall Time (microsec)25,685 25,065 -620 -2.4%
Incl. Wall Time (microsec) per call 435 425 -11 -2.4%
Excl. Wall Time (microsec)950 938 -12 -1.3%
Incl. CPU (microsecs)20,548 20,338 -210 -1.0%
Incl. CPU (microsecs) per call 348 345 -4 -1.0%
Excl. CPU (microsec)847 821 -26 -3.1%
Incl. MemUse (bytes)2,051,152 2,052,192 1,040 0.1%
Incl. MemUse (bytes) per call 34,765 34,783 18 0.1%
Excl. MemUse (bytes)-150,464 -150,688 -224 -0.1%
Incl. PeakMemUse (bytes)2,254,360 2,255,872 1,512 0.1%
Incl. PeakMemUse (bytes) per call 38,209 38,235 26 0.1%
Excl. PeakMemUse (bytes)3,680 3,680 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% -620 -232.2% -210 -14.0% 1,040 1.4% 1,512 2.1%
Exclusive Metrics Diff for Current Function-12 -1.9% -26 -12.4% -224 -21.5% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -620 -100.0% -210 -100.0% 1,040 100.0% 1,512 100.0%
Child functions
unserialize0 N/A% -600 -96.8% -242 -115.2% 1,264 121.5% 1,392 92.1%
explode0 N/A% -8 -1.3% -8 -3.8% 0 0.0% 0 0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 0 0.0% 66 31.4% 0 0.0% 120 7.9%