Diff Report
Run #5391fd5a43e70: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #5391fc871e91d: XHProf Run (Namespace=drupal-perf-drupalcon)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5391fd5a43e70Run #5391fc871e91dDiffDiff%
Number of Function Calls65 65 0 0.0%
Incl. Wall Time (microsec)27,333 28,382 1,049 3.8%
Incl. Wall Time (microsec) per call 421 437 16 3.8%
Excl. Wall Time (microsec)1,255 1,286 31 2.5%
Incl. CPU (microsecs)21,687 22,079 392 1.8%
Incl. CPU (microsecs) per call 334 340 6 1.8%
Excl. CPU (microsec)1,132 1,159 27 2.4%
Incl. MemUse (bytes)1,225,956 1,224,800 -1,156 -0.1%
Incl. MemUse (bytes) per call 18,861 18,843 -18 -0.1%
Excl. MemUse (bytes)-328,444 -327,964 480 0.1%
Incl. PeakMemUse (bytes)1,588,828 1,588,944 116 0.0%
Incl. PeakMemUse (bytes) per call 24,444 24,445 2 0.0%
Excl. PeakMemUse (bytes)2,224 2,224 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% 1,049 62.9% 392 98.0% -1,156 -4.6% 116 0.5%
Exclusive Metrics Diff for Current Function31 3.0% 27 6.9% 480 41.5% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% 1,049 100.0% 392 100.0% -1,156 -100.0% 116 100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% 1,004 95.7% 363 92.6% 0 0.0% 1,024 882.8%
explode0 N/A% 19 1.8% 15 3.8% 0 0.0% 0 0.0%
Symfony\Component\ClassLoader\ApcClassLoader::loadClass0 N/A% -3 -0.3% -3 -0.8% 0 0.0% 0 0.0%
unserialize0 N/A% -2 -0.2% -10 -2.6% -1,636 -141.5% -908 -782.8%