Diff Report
Run #517d73f55c548: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #517d7319aefb8: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #517d73f55c548Run #517d7319aefb8DiffDiff%
Number of Function Calls58 58 0 0.0%
Incl. Wall Time (microsec)23,163 22,654 -509 -2.2%
Incl. Wall Time (microsec) per call 399 391 -9 -2.2%
Excl. Wall Time (microsec)868 876 8 0.9%
Incl. CPU (microsecs)18,714 18,305 -409 -2.2%
Incl. CPU (microsecs) per call 323 316 -7 -2.2%
Excl. CPU (microsec)807 775 -32 -4.0%
Incl. MemUse (bytes)1,458,856 1,460,248 1,392 0.1%
Incl. MemUse (bytes) per call 25,153 25,177 24 0.1%
Excl. MemUse (bytes)-163,480 -163,696 -216 -0.1%
Incl. PeakMemUse (bytes)1,919,632 1,918,952 -680 -0.0%
Incl. PeakMemUse (bytes) per call 33,097 33,085 -12 -0.0%
Excl. PeakMemUse (bytes)6,000 6,080 80 1.3%

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% -509 -6.1% -409 -4.8% 1,392 7.4% -680 -3.6%
Exclusive Metrics Diff for Current Function8 1.6% -32 -7.8% -216 -15.5% 80 11.8%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -509 -100.0% -409 -100.0% 1,392 100.0% -680 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -269 -52.8% -62 -15.2% 24 1.7% -232 -34.1%
unserialize0 N/A% -253 -49.7% -317 -77.5% 1,608 115.5% -528 -77.6%
explode0 N/A% 5 1.0% 2 0.5% -24 -1.7% 0 0.0%