Diff Report
Run #512a1f7f217a6: XHProf Run (Namespace=drupal-perf)
vs.
Run #512a20b11c1ab: XHProf Run (Namespace=drupal-perf)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #512a1f7f217a6Run #512a20b11c1abDiffDiff%
Number of Function Calls107 122 15 14.0%
Incl. Wall Time (microsec)6,066 7,169 1,103 18.2%
Incl. Wall Time (microsec) per call 57 59 2 3.7%
Excl. Wall Time (microsec)1,113 1,314 201 18.1%
Incl. CPU (microsecs)0 4,000 4,000 N/A%
Incl. CPU (microsecs) per call 0 33 33 N/A%
Excl. CPU (microsec)0 0 0 N/A%
Incl. MemUse (bytes)1,630,696 2,075,616 444,920 27.3%
Incl. MemUse (bytes) per call 15,240 17,013 1,773 11.6%
Excl. MemUse (bytes)-376,120 -425,976 -49,856 -13.3%
Incl. PeakMemUse (bytes)2,175,872 2,855,824 679,952 31.2%
Incl. PeakMemUse (bytes) per call 20,335 23,408 3,073 15.1%
Excl. PeakMemUse (bytes)11,320 15,792 4,472 39.5%

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::prepareItem15 32.6% 1,103 3.3% 4,000 12.5% 444,920 13.4% 679,952 20.0%
Exclusive Metrics Diff for Current Function201 18.2% 0 0.0% -49,856 -11.2% 4,472 0.7%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple15 100.0% 1,103 100.0% 4,000 100.0% 444,920 100.0% 679,952 100.0%
Child functions
unserialize15 48.4% 566 51.3% 0 0.0% 481,880 108.3% 647,960 95.3%
Drupal\Core\Cache\DatabaseBackend::checksumTags15 48.4% 335 30.4% 4,000 100.0% 12,432 2.8% 27,304 4.0%
explode1 3.2% 1 0.1% 0 0.0% 464 0.1% 216 0.0%