Diff Report
Run #519b1ad213669: XHProf Run (Namespace=drupal-perf-jenlampton)
vs.
Run #519b1557bbc04: XHProf Run (Namespace=drupal-perf-jenlampton)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519b1ad213669Run #519b1557bbc04DiffDiff%
Number of Function Calls92 91 -1 -1.1%
Incl. Wall Time (microsec)39,297 39,380 83 0.2%
Incl. Wall Time (microsec) per call 427 433 6 1.3%
Excl. Wall Time (microsec)2,315 2,278 -37 -1.6%
Incl. CPU (microsecs)38,103 38,231 128 0.3%
Incl. CPU (microsecs) per call 414 420 6 1.4%
Excl. CPU (microsec)2,160 2,131 -29 -1.3%
Incl. MemUse (bytes)2,196,432 2,208,136 11,704 0.5%
Incl. MemUse (bytes) per call 23,874 24,265 391 1.6%
Excl. MemUse (bytes)-249,392 -251,064 -1,672 -0.7%
Incl. PeakMemUse (bytes)2,864,376 2,863,176 -1,200 -0.0%
Incl. PeakMemUse (bytes) per call 31,135 31,463 329 1.1%
Excl. PeakMemUse (bytes)5,392 5,360 -32 -0.6%

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::prepareItem-1 -33.3% 83 0.7% 128 0.8% 11,704 4.6% -1,200 -0.5%
Exclusive Metrics Diff for Current Function-37 -44.6% -29 -22.7% -1,672 -14.3% -32 -2.7%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple-1 -100.0% 83 100.0% 128 100.0% 11,704 100.0% -1,200 -100.0%
Child functions
unserialize-1 -50.0% 248 298.8% 352 275.0% 13,896 118.7% 5,968 497.3%
Drupal\Core\Cache\DatabaseBackend::checksumTags-1 -50.0% -118 -142.2% -175 -136.7% -520 -4.4% -7,104 -592.0%
explode0 0.0% -10 -12.0% -20 -15.6% 0 0.0% -32 -2.7%