Diff Report
Run #5192e6f7bc551: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #5192e84845baf: XHProf Run (Namespace=drupal-perf-cottser)
Tip
Click a function name below to drill down.

Regression/Improvement summary for Drupal\Core\Cache\DatabaseBackend::prepareItem

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #5192e6f7bc551Run #5192e84845bafDiffDiff%
Number of Function Calls70 70 0 0.0%
Incl. Wall Time (microsec)20,733 20,176 -557 -2.7%
Incl. Wall Time (microsec) per call 296 288 -8 -2.7%
Excl. Wall Time (microsec)1,133 1,071 -62 -5.5%
Incl. CPU (microsecs)16,659 16,902 243 1.5%
Incl. CPU (microsecs) per call 238 241 3 1.5%
Excl. CPU (microsec)1,031 976 -55 -5.3%
Incl. MemUse (bytes)1,393,688 1,393,576 -112 -0.0%
Incl. MemUse (bytes) per call 19,910 19,908 -2 -0.0%
Excl. MemUse (bytes)-176,296 -176,312 -16 -0.0%
Incl. PeakMemUse (bytes)1,961,664 1,961,432 -232 -0.0%
Incl. PeakMemUse (bytes) per call 28,024 28,020 -3 -0.0%
Excl. PeakMemUse (bytes)6,824 6,824 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% -557 -109.2% 243 23.6% -112 -0.1% -232 -0.2%
Exclusive Metrics Diff for Current Function-62 -11.1% -55 -22.6% -16 -14.3% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -557 -100.0% 243 100.0% -112 -100.0% -232 -100.0%
Child functions
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -383 -68.8% -173 -71.2% 0 0.0% 16 6.9%
unserialize0 N/A% -112 -20.1% 471 193.8% -72 -64.3% -224 -96.6%
explode0 N/A% 0 0.0% 0 0.0% -24 -21.4% -24 -10.3%