Diff Report
Run #51aad231c9c46: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51aad15cb89bb: 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 #51aad231c9c46Run #51aad15cb89bbDiffDiff%
Number of Function Calls59 59 0 0.0%
Incl. Wall Time (microsec)25,065 25,685 620 2.5%
Incl. Wall Time (microsec) per call 425 435 11 2.5%
Excl. Wall Time (microsec)938 950 12 1.3%
Incl. CPU (microsecs)20,338 20,548 210 1.0%
Incl. CPU (microsecs) per call 345 348 4 1.0%
Excl. CPU (microsec)821 847 26 3.2%
Incl. MemUse (bytes)2,052,192 2,051,152 -1,040 -0.1%
Incl. MemUse (bytes) per call 34,783 34,765 -18 -0.1%
Excl. MemUse (bytes)-150,688 -150,464 224 0.1%
Incl. PeakMemUse (bytes)2,255,872 2,254,360 -1,512 -0.1%
Incl. PeakMemUse (bytes) per call 38,235 38,209 -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 Function12 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%