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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519a4774889ddRun #519a496084867DiffDiff%
Number of Function Calls95 95 0 0.0%
Incl. Wall Time (microsec)204,564 331,716 127,152 62.2%
Incl. Wall Time (microsec) per call 2,153 3,492 1,338 62.2%
Excl. Wall Time (microsec)8,634 15,256 6,622 76.7%
Incl. CPU (microsecs)40,004 44,004 4,000 10.0%
Incl. CPU (microsecs) per call 421 463 42 10.0%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)3,636,360 3,637,144 784 0.0%
Incl. MemUse (bytes) per call 38,277 38,286 8 0.0%
Excl. MemUse (bytes)-260,816 -260,888 -72 -0.0%
Incl. PeakMemUse (bytes)4,203,448 4,197,064 -6,384 -0.2%
Incl. PeakMemUse (bytes) per call 44,247 44,180 -67 -0.2%
Excl. PeakMemUse (bytes)7,064 7,368 304 4.3%

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 Function6,622 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%