Diff Report
Run #52c862ea26981: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #52c8629919553: 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 #52c862ea26981Run #52c8629919553DiffDiff%
Number of Function Calls88 88 0 0.0%
Incl. Wall Time (microsec)8,600 8,507 -93 -1.1%
Incl. Wall Time (microsec) per call 98 97 -1 -1.1%
Excl. Wall Time (microsec)879 877 -2 -0.2%
Incl. CPU (microsecs)7,649 7,544 -105 -1.4%
Incl. CPU (microsecs) per call 87 86 -1 -1.4%
Excl. CPU (microsec)787 837 50 6.4%
Incl. MemUse (bytes)1,692,136 1,695,816 3,680 0.2%
Incl. MemUse (bytes) per call 19,229 19,271 42 0.2%
Excl. MemUse (bytes)-280,280 -281,104 -824 -0.3%
Incl. PeakMemUse (bytes)1,950,968 1,967,608 16,640 0.9%
Incl. PeakMemUse (bytes) per call 22,170 22,359 189 0.9%
Excl. PeakMemUse (bytes)6,848 6,848 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% -93 -145.3% -105 -59.0% 3,680 13.4% 16,640 64.2%
Exclusive Metrics Diff for Current Function-2 -2.2% 50 47.6% -824 -22.4% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -93 -100.0% -105 -100.0% 3,680 100.0% 16,640 100.0%
Child functions
unserialize0 N/A% -84 -90.3% -106 -101.0% 4,504 122.4% 14,784 88.8%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -7 -7.5% -47 -44.8% 0 0.0% 1,856 11.2%
explode0 N/A% 0 0.0% -2 -1.9% 0 0.0% 0 0.0%