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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #517c76da9b0d3Run #517c75d3de7c7DiffDiff%
Number of Function Calls58 59 1 1.7%
Incl. Wall Time (microsec)23,070 23,270 200 0.9%
Incl. Wall Time (microsec) per call 398 394 -3 -0.8%
Excl. Wall Time (microsec)855 904 49 5.7%
Incl. CPU (microsecs)18,673 18,939 266 1.4%
Incl. CPU (microsecs) per call 322 321 -1 -0.3%
Excl. CPU (microsec)769 822 53 6.9%
Incl. MemUse (bytes)1,459,736 1,459,080 -656 -0.0%
Incl. MemUse (bytes) per call 25,168 24,730 -438 -1.7%
Excl. MemUse (bytes)-163,984 -163,992 -8 -0.0%
Incl. PeakMemUse (bytes)1,920,544 1,916,320 -4,224 -0.2%
Incl. PeakMemUse (bytes) per call 33,113 32,480 -633 -1.9%
Excl. PeakMemUse (bytes)5,992 6,064 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::prepareItem1 33.3% 200 0.1% 266 0.3% -656 -0.3% -4,224 -1.2%
Exclusive Metrics Diff for Current Function49 24.5% 53 19.9% -8 -1.2% 72 1.7%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple1 100.0% 200 100.0% 266 100.0% -656 -100.0% -4,224 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags1 50.0% 433 216.5% 146 54.9% 488 74.4% -72 -1.7%
unserialize1 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%