Diff Report
Run #51af3d98520b7: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #51af430daedb2: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51af3d98520b7Run #51af430daedb2DiffDiff%
Number of Function Calls47 47 0 0.0%
Incl. Wall Time (microsec)20,177 20,523 346 1.7%
Incl. Wall Time (microsec) per call 429 437 7 1.7%
Excl. Wall Time (microsec)795 803 8 1.0%
Incl. CPU (microsecs)18,047 18,105 58 0.3%
Incl. CPU (microsecs) per call 384 385 1 0.3%
Excl. CPU (microsec)756 773 17 2.2%
Incl. MemUse (bytes)1,847,544 1,847,544 0 0.0%
Incl. MemUse (bytes) per call 39,309 39,309 0 0.0%
Excl. MemUse (bytes)-116,528 -116,528 0 0.0%
Incl. PeakMemUse (bytes)2,037,928 2,037,928 0 0.0%
Incl. PeakMemUse (bytes) per call 43,360 43,360 0 0.0%
Excl. PeakMemUse (bytes)4,816 4,816 0 0.0%

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% 346 25.6% 58 3.2% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function8 2.3% 17 29.3% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 346 100.0% 58 100.0% 0 N/A% 0 N/A%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 254 73.4% 109 187.9% 0 N/A% 0 N/A%
unserialize0 N/A% 95 27.5% -53 -91.4% 0 N/A% 0 N/A%
explode0 N/A% -11 -3.2% -15 -25.9% 0 N/A% 0 N/A%