Diff Report
Run #51a0ef63cb19e: XHProf Run (Namespace=drupal-perf-ezeedub)
vs.
Run #51a0f086f2681: XHProf Run (Namespace=drupal-perf-ezeedub)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #51a0ef63cb19eRun #51a0f086f2681DiffDiff%
Number of Function Calls90 91 1 1.1%
Incl. Wall Time (microsec)31,279 30,922 -357 -1.1%
Incl. Wall Time (microsec) per call 348 340 -8 -2.2%
Excl. Wall Time (microsec)2,210 2,247 37 1.7%
Incl. CPU (microsecs)32,002 36,003 4,001 12.5%
Incl. CPU (microsecs) per call 356 396 40 11.3%
Excl. CPU (microsec)0 4,000 4,000 N/A%
Incl. MemUse (bytes)749,232 749,572 340 0.0%
Incl. MemUse (bytes) per call 8,325 8,237 -88 -1.1%
Excl. MemUse (bytes)-177,268 -177,564 -296 -0.2%
Incl. PeakMemUse (bytes)1,138,216 1,141,448 3,232 0.3%
Incl. PeakMemUse (bytes) per call 12,647 12,543 -103 -0.8%
Excl. PeakMemUse (bytes)2,560 2,556 -4 -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::prepareItem1 33.3% -357 -9.9% 4,001 50.0% 340 1.9% 3,232 16.1%
Exclusive Metrics Diff for Current Function37 10.4% 4,000 100.0% -296 -87.1% -4 -0.1%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple1 100.0% -357 -100.0% 4,001 100.0% 340 100.0% 3,232 100.0%
Child functions
unserialize1 50.0% -417 -116.8% -8,001 -200.0% 376 110.6% 2,448 75.7%
Drupal\Core\Cache\DatabaseBackend::checksumTags1 50.0% 21 5.9% 8,002 200.0% 260 76.5% 788 24.4%
explode0 0.0% 2 0.6% 0 0.0% 0 0.0% 0 0.0%