Diff Report
Run #5192e84845baf: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5192e6f7bc551: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5192e84845bafRun #5192e6f7bc551DiffDiff%
Number of Function Calls70 70 0 0.0%
Incl. Wall Time (microsec)20,176 20,733 557 2.8%
Incl. Wall Time (microsec) per call 288 296 8 2.8%
Excl. Wall Time (microsec)1,071 1,133 62 5.8%
Incl. CPU (microsecs)16,902 16,659 -243 -1.4%
Incl. CPU (microsecs) per call 241 238 -3 -1.4%
Excl. CPU (microsec)976 1,031 55 5.6%
Incl. MemUse (bytes)1,393,576 1,393,688 112 0.0%
Incl. MemUse (bytes) per call 19,908 19,910 2 0.0%
Excl. MemUse (bytes)-176,312 -176,296 16 0.0%
Incl. PeakMemUse (bytes)1,961,432 1,961,664 232 0.0%
Incl. PeakMemUse (bytes) per call 28,020 28,024 3 0.0%
Excl. PeakMemUse (bytes)6,824 6,824 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% 557 109.2% -243 -23.6% 112 0.1% 232 0.2%
Exclusive Metrics Diff for Current Function62 11.1% 55 22.6% 16 14.3% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 557 100.0% -243 -100.0% 112 100.0% 232 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 383 68.8% 173 71.2% 0 0.0% -16 -6.9%
unserialize0 N/A% 112 20.1% -471 -193.8% 72 64.3% 224 96.6%
explode0 N/A% 0 0.0% 0 0.0% 24 21.4% 24 10.3%