Diff Report
Run #52ed72044139b: XHProf Run (Namespace=drupal-perf-joelpittet)
vs.
Run #52ed7448d018c: XHProf Run (Namespace=drupal-perf-joelpittet)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52ed72044139bRun #52ed7448d018cDiffDiff%
Number of Function Calls77 77 0 0.0%
Incl. Wall Time (microsec)16,282 16,683 401 2.5%
Incl. Wall Time (microsec) per call 211 217 5 2.5%
Excl. Wall Time (microsec)1,849 1,789 -60 -3.2%
Incl. CPU (microsecs)15,862 16,310 448 2.8%
Incl. CPU (microsecs) per call 206 212 6 2.8%
Excl. CPU (microsec)1,736 1,689 -47 -2.7%
Incl. MemUse (bytes)1,866,696 1,867,432 736 0.0%
Incl. MemUse (bytes) per call 24,243 24,252 10 0.0%
Excl. MemUse (bytes)-279,552 -279,664 -112 -0.0%
Incl. PeakMemUse (bytes)1,614,320 1,612,496 -1,824 -0.1%
Incl. PeakMemUse (bytes) per call 20,965 20,942 -24 -0.1%
Excl. PeakMemUse (bytes)4,056 3,960 -96 -2.4%

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% 401 0.8% 448 0.9% 736 0.3% -1,824 -0.8%
Exclusive Metrics Diff for Current Function-60 -15.0% -47 -10.5% -112 -15.2% -96 -5.3%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 401 100.0% 448 100.0% 736 100.0% -1,824 -100.0%
Child functions
unserialize0 N/A% 639 159.4% 638 142.4% 840 114.1% 72 3.9%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -165 -41.1% -133 -29.7% 8 1.1% -1,720 -94.3%
explode0 N/A% -11 -2.7% -8 -1.8% 0 0.0% -48 -2.6%
spl_autoload_call0 N/A% -2 -0.5% -2 -0.4% 0 0.0% -32 -1.8%