Diff Report
Run #51fdbdbb58abc: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #51fdbca2b5409: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51fdbdbb58abcRun #51fdbca2b5409DiffDiff%
Number of Function Calls123 123 0 0.0%
Incl. Wall Time (microsec)23,557 23,107 -450 -1.9%
Incl. Wall Time (microsec) per call 192 188 -4 -1.9%
Excl. Wall Time (microsec)1,565 1,495 -70 -4.5%
Incl. CPU (microsecs)19,618 19,352 -266 -1.4%
Incl. CPU (microsecs) per call 159 157 -2 -1.4%
Excl. CPU (microsec)1,419 1,353 -66 -4.7%
Incl. MemUse (bytes)2,208,584 2,207,808 -776 -0.0%
Incl. MemUse (bytes) per call 17,956 17,950 -6 -0.0%
Excl. MemUse (bytes)-259,448 -259,320 128 0.0%
Incl. PeakMemUse (bytes)2,883,768 2,882,312 -1,456 -0.1%
Incl. PeakMemUse (bytes) per call 23,445 23,433 -12 -0.1%
Excl. PeakMemUse (bytes)6,904 6,888 -16 -0.2%

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% -450 -47.5% -266 -369.4% -776 -2.6% -1,456 -4.7%
Exclusive Metrics Diff for Current Function-70 -15.6% -66 -24.8% 128 16.5% -16 -1.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -450 -100.0% -266 -100.0% -776 -100.0% -1,456 -100.0%
Child functions
unserialize0 N/A% -410 -91.1% -138 -51.9% -904 -116.5% -1,304 -89.6%
explode0 N/A% 25 5.6% 24 9.0% 0 0.0% 0 0.0%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 5 1.1% -86 -32.3% 0 0.0% -136 -9.3%