Diff Report
Run #519a496084867: XHProf Run (Namespace=drupal-perf-steveoliver)
vs.
Run #519a4774889dd: XHProf Run (Namespace=drupal-perf-steveoliver)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519a496084867Run #519a4774889ddDiffDiff%
Number of Function Calls95 95 0 0.0%
Incl. Wall Time (microsec)331,716 204,564 -127,152 -38.3%
Incl. Wall Time (microsec) per call 3,492 2,153 -1,338 -38.3%
Excl. Wall Time (microsec)15,256 8,634 -6,622 -43.4%
Incl. CPU (microsecs)44,004 40,004 -4,000 -9.1%
Incl. CPU (microsecs) per call 463 421 -42 -9.1%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)3,637,144 3,636,360 -784 -0.0%
Incl. MemUse (bytes) per call 38,286 38,277 -8 -0.0%
Excl. MemUse (bytes)-260,888 -260,816 72 0.0%
Incl. PeakMemUse (bytes)4,197,064 4,203,448 6,384 0.2%
Incl. PeakMemUse (bytes) per call 44,180 44,247 67 0.2%
Excl. PeakMemUse (bytes)7,368 7,064 -304 -4.1%

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% -127,152 -5.1% -4,000 -100.0% -784 -5.8% 6,384 44.0%
Exclusive Metrics Diff for Current Function-6,622 -5.2% 0 0.0% 72 9.2% -304 -4.8%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -127,152 -100.0% -4,000 -100.0% -784 -100.0% 6,384 100.0%
Child functions
unserialize0 N/A% -103,486 -81.4% -4,000 -100.0% -856 -109.2% 7,040 110.3%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -16,778 -13.2% 0 0.0% 0 0.0% -352 -5.5%
explode0 N/A% -266 -0.2% 0 0.0% 0 0.0% 0 0.0%