Diff Report
Run #52d4b18f32fb6: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52d4b1f732b14: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #52d4b18f32fb6Run #52d4b1f732b14DiffDiff%
Number of Function Calls107 106 -1 -0.9%
Incl. Wall Time (microsec)9,799 9,927 128 1.3%
Incl. Wall Time (microsec) per call 92 94 2 2.3%
Excl. Wall Time (microsec)939 959 20 2.1%
Incl. CPU (microsecs)9,080 9,200 120 1.3%
Incl. CPU (microsecs) per call 85 87 2 2.3%
Excl. CPU (microsec)843 840 -3 -0.4%
Incl. MemUse (bytes)1,840,648 1,840,712 64 0.0%
Incl. MemUse (bytes) per call 17,202 17,365 163 0.9%
Excl. MemUse (bytes)-259,984 -259,592 392 0.2%
Incl. PeakMemUse (bytes)2,272,544 2,261,376 -11,168 -0.5%
Incl. PeakMemUse (bytes) per call 21,239 21,334 95 0.4%
Excl. PeakMemUse (bytes)7,856 7,928 72 0.9%

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::prepareItem-1 -33.3% 128 7.0% 120 6.5% 64 0.1% -11,168 -13.1%
Exclusive Metrics Diff for Current Function20 15.6% -3 -2.5% 392 612.5% 72 0.6%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple-1 -100.0% 128 100.0% 120 100.0% 64 100.0% -11,168 -100.0%
Child functions
unserialize-1 -50.0% 131 102.3% 136 113.3% 152 237.5% -11,208 -100.4%
Drupal\Core\Cache\DatabaseBackend::checksumTags-1 -50.0% -23 -18.0% -8 -6.7% -488 -762.5% -32 -0.3%
explode0 0.0% 0 0.0% -5 -4.2% 8 12.5% 0 0.0%