Diff Report
Run #517c75d3de7c7: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517c76da9b0d3: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #517c75d3de7c7Run #517c76da9b0d3DiffDiff%
Number of Function Calls59 58 -1 -1.7%
Incl. Wall Time (microsec)23,270 23,070 -200 -0.9%
Incl. Wall Time (microsec) per call 394 398 3 0.8%
Excl. Wall Time (microsec)904 855 -49 -5.4%
Incl. CPU (microsecs)18,939 18,673 -266 -1.4%
Incl. CPU (microsecs) per call 321 322 1 0.3%
Excl. CPU (microsec)822 769 -53 -6.4%
Incl. MemUse (bytes)1,459,080 1,459,736 656 0.0%
Incl. MemUse (bytes) per call 24,730 25,168 438 1.8%
Excl. MemUse (bytes)-163,992 -163,984 8 0.0%
Incl. PeakMemUse (bytes)1,916,320 1,920,544 4,224 0.2%
Incl. PeakMemUse (bytes) per call 32,480 33,113 633 1.9%
Excl. PeakMemUse (bytes)6,064 5,992 -72 -1.2%

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% -200 -0.1% -266 -0.3% 656 0.3% 4,224 1.2%
Exclusive Metrics Diff for Current Function-49 -24.5% -53 -19.9% 8 1.2% -72 -1.7%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple-1 -100.0% -200 -100.0% -266 -100.0% 656 100.0% 4,224 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags-1 -50.0% -433 -216.5% -146 -54.9% -488 -74.4% 72 1.7%
unserialize-1 -50.0% 289 144.5% -59 -22.2% 1,112 169.5% 4,224 100.0%
explode0 0.0% -7 -3.5% -8 -3.0% 24 3.7% 0 0.0%