Diff Report
Run #519ff7de62889: XHProf Run (Namespace=drupal-perf-drupalcon)
vs.
Run #519ff693b4ca2: XHProf Run (Namespace=drupal-perf-drupalcon)
Tip
Click a function name below to drill down.

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

Drupal\Core\Cache\DatabaseBackend::prepareItemRun #519ff7de62889Run #519ff693b4ca2DiffDiff%
Number of Function Calls73 73 0 0.0%
Incl. Wall Time (microsec)26,506 26,286 -220 -0.8%
Incl. Wall Time (microsec) per call 363 360 -3 -0.8%
Excl. Wall Time (microsec)1,336 1,302 -34 -2.5%
Incl. CPU (microsecs)26,048 25,821 -227 -0.9%
Incl. CPU (microsecs) per call 357 354 -3 -0.9%
Excl. CPU (microsec)1,215 1,195 -20 -1.6%
Incl. MemUse (bytes)1,454,544 1,451,640 -2,904 -0.2%
Incl. MemUse (bytes) per call 19,925 19,885 -40 -0.2%
Excl. MemUse (bytes)-180,424 -179,752 672 0.4%
Incl. PeakMemUse (bytes)1,991,288 1,987,456 -3,832 -0.2%
Incl. PeakMemUse (bytes) per call 27,278 27,225 -52 -0.2%
Excl. PeakMemUse (bytes)5,592 5,592 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% -220 -19.4% -227 -19.3% -2,904 -4.2% -3,832 -5.5%
Exclusive Metrics Diff for Current Function-34 -15.5% -20 -8.8% 672 23.1% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::getMultiple0 N/A% -220 -100.0% -227 -100.0% -2,904 -100.0% -3,832 -100.0%
Child functions
unserialize0 N/A% -115 -52.3% -128 -56.4% -3,576 -123.1% -3,576 -93.3%
Drupal\Core\Cache\DatabaseBackend::checksumTags0 N/A% -72 -32.7% -77 -33.9% 0 0.0% -256 -6.7%
explode0 N/A% 1 0.5% -2 -0.9% 0 0.0% 0 0.0%