Diff Report
Run #519af3b0bf970: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519af56893788: 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 #519af3b0bf970Run #519af56893788DiffDiff%
Number of Function Calls102 102 0 0.0%
Incl. Wall Time (microsec)22,394 21,563 -831 -3.7%
Incl. Wall Time (microsec) per call 220 211 -8 -3.7%
Excl. Wall Time (microsec)1,372 1,298 -74 -5.4%
Incl. CPU (microsecs)19,910 19,128 -782 -3.9%
Incl. CPU (microsecs) per call 195 188 -8 -3.9%
Excl. CPU (microsec)1,233 1,192 -41 -3.3%
Incl. MemUse (bytes)1,984,848 1,984,736 -112 -0.0%
Incl. MemUse (bytes) per call 19,459 19,458 -1 -0.0%
Excl. MemUse (bytes)-292,704 -292,672 32 0.0%
Incl. PeakMemUse (bytes)2,078,344 2,078,832 488 0.0%
Incl. PeakMemUse (bytes) per call 20,376 20,381 5 0.0%
Excl. PeakMemUse (bytes)4,472 4,472 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% -831 -150.5% -782 -165.3% -112 -0.2% 488 0.8%
Exclusive Metrics Diff for Current Function-74 -8.9% -41 -5.2% 32 28.6% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -831 -100.0% -782 -100.0% -112 -100.0% 488 100.0%
Child functions
unserialize0 N/A% -611 -73.5% -605 -77.4% -128 -114.3% 616 126.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -145 -17.4% -126 -16.1% -16 -14.3% -128 -26.2%
explode0 N/A% -1 -0.1% -10 -1.3% 0 0.0% 0 0.0%