Diff Report
Run #51abc4cb0a647: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51abc588c7973: 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 #51abc4cb0a647Run #51abc588c7973DiffDiff%
Number of Function Calls49 49 0 0.0%
Incl. Wall Time (microsec)16,907 16,864 -43 -0.3%
Incl. Wall Time (microsec) per call 345 344 -1 -0.3%
Excl. Wall Time (microsec)787 784 -3 -0.4%
Incl. CPU (microsecs)13,236 13,749 513 3.9%
Incl. CPU (microsecs) per call 270 281 10 3.9%
Excl. CPU (microsec)711 715 4 0.6%
Incl. MemUse (bytes)1,300,320 1,301,488 1,168 0.1%
Incl. MemUse (bytes) per call 26,537 26,561 24 0.1%
Excl. MemUse (bytes)-126,496 -126,728 -232 -0.2%
Incl. PeakMemUse (bytes)1,431,152 1,432,464 1,312 0.1%
Incl. PeakMemUse (bytes) per call 29,207 29,234 27 0.1%
Excl. PeakMemUse (bytes)2,552 2,552 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% -43 -78.2% 513 30.6% 1,168 4.3% 1,312 4.9%
Exclusive Metrics Diff for Current Function-3 -7.0% 4 0.8% -232 -19.9% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -43 -100.0% 513 100.0% 1,168 100.0% 1,312 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -165 -383.7% -38 -7.4% 0 0.0% -32 -2.4%
unserialize0 N/A% 128 297.7% 546 106.4% 1,400 119.9% 1,344 102.4%
explode0 N/A% -3 -7.0% 1 0.2% 0 0.0% 0 0.0%