Diff Report
Run #51fdbd76c2eed: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51fdbca2b5409: XHProf Run (Namespace=drupal-perf-cottser)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51fdbd76c2eedRun #51fdbca2b5409DiffDiff%
Number of Function Calls123 123 0 0.0%
Incl. Wall Time (microsec)22,785 23,107 322 1.4%
Incl. Wall Time (microsec) per call 185 188 3 1.4%
Excl. Wall Time (microsec)1,506 1,495 -11 -0.7%
Incl. CPU (microsecs)18,923 19,352 429 2.3%
Incl. CPU (microsecs) per call 154 157 3 2.3%
Excl. CPU (microsec)1,348 1,353 5 0.4%
Incl. MemUse (bytes)2,207,808 2,207,808 0 0.0%
Incl. MemUse (bytes) per call 17,950 17,950 0 0.0%
Excl. MemUse (bytes)-259,320 -259,320 0 0.0%
Incl. PeakMemUse (bytes)2,882,312 2,882,312 0 0.0%
Incl. PeakMemUse (bytes) per call 23,433 23,433 0 0.0%
Excl. PeakMemUse (bytes)6,888 6,888 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% 322 48.5% 429 28.4% 0 N/A% 0 N/A%
Exclusive Metrics Diff for Current Function-11 -3.4% 5 1.2% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 322 100.0% 429 100.0% 0 N/A% 0 N/A%
Child functions
unserialize0 N/A% 170 52.8% 277 64.6% 0 N/A% 0 N/A%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 127 39.4% 107 24.9% 0 N/A% 0 N/A%
explode0 N/A% 36 11.2% 40 9.3% 0 N/A% 0 N/A%