Diff Report
Run #5350e2663e694: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5350e128cfd2b: 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 #5350e2663e694Run #5350e128cfd2bDiffDiff%
Number of Function Calls103 103 0 0.0%
Incl. Wall Time (microsec)24,110 23,734 -376 -1.6%
Incl. Wall Time (microsec) per call 234 230 -4 -1.6%
Excl. Wall Time (microsec)955 960 5 0.5%
Incl. CPU (microsecs)22,116 21,762 -354 -1.6%
Incl. CPU (microsecs) per call 215 211 -3 -1.6%
Excl. CPU (microsec)786 831 45 5.7%
Incl. MemUse (bytes)3,965,136 3,964,696 -440 -0.0%
Incl. MemUse (bytes) per call 38,496 38,492 -4 -0.0%
Excl. MemUse (bytes)-353,896 -353,776 120 0.0%
Incl. PeakMemUse (bytes)3,976,248 3,977,352 1,104 0.0%
Incl. PeakMemUse (bytes) per call 38,604 38,615 11 0.0%
Excl. PeakMemUse (bytes)4,240 4,616 376 8.9%

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% -376 -23.5% -354 -20.5% -440 -1.9% 1,104 4.9%
Exclusive Metrics Diff for Current Function5 1.3% 45 12.7% 120 27.3% 376 34.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -376 -100.0% -354 -100.0% -440 -100.0% 1,104 100.0%
Child functions
unserialize0 N/A% -357 -94.9% -385 -108.8% -560 -127.3% 808 73.2%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -21 -5.6% -5 -1.4% 0 0.0% -80 -7.2%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% -3 -0.8% -3 -0.8% 0 0.0% 0 0.0%
explode0 N/A% 0 0.0% -6 -1.7% 0 0.0% 0 0.0%