Diff Report
Run #560d7dac0c098: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #560d8088818a3: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Cache\DatabaseCacheTagsChecksum::calculateChecksum

Drupal\Core\Cache\DatabaseCacheTagsChecksum::calculateChecksumRun #560d7dac0c098Run #560d8088818a3DiffDiff%
Number of Function Calls201 201 0 0.0%
Incl. Wall Time (microsec)2,503 2,674 171 6.8%
Incl. Wall Time (microsec) per call 12 13 1 6.8%
Excl. Wall Time (microsec)754 788 34 4.5%
Incl. MemUse (bytes)18,800 18,824 24 0.1%
Incl. MemUse (bytes) per call 94 94 0 0.1%
Excl. MemUse (bytes)-284,488 -284,488 0 0.0%
Incl. PeakMemUse (bytes)12,648 12,712 64 0.5%
Incl. PeakMemUse (bytes) per call 63 63 0 0.5%
Excl. PeakMemUse (bytes)400 400 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseCacheTagsChecksum::calculateChecksum [View Callgraph Diff]


Function NameCalls DiffCalls
Diff%		Incl. Wall
Diff
(microsec)		IWall
Diff%		Incl.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
Drupal\Core\Cache\DatabaseCacheTagsChecksum::calculateChecksum0 N/A% 171 1.2% 24 0.1% 64 0.2%
Exclusive Metrics Diff for Current Function34 19.9% 0 0.0% 0 0.0%
Parent function
Drupal\Core\Cache\DatabaseCacheTagsChecksum::isValid0 N/A% 171 100.0% 24 100.0% 64 100.0%
Child functions
Drupal\Core\Database\Driver\mysql\Connection::query0 N/A% 126 73.7% 8 33.3% 8 12.5%
array_diff0 N/A% 8 4.7% 0 0.0% 24 37.5%
Drupal\Core\Database\Statement::fetchAllKeyed0 N/A% 4 2.3% 24 100.0% 32 50.0%
array_fill_keys0 N/A% -1 -0.6% 0 0.0% 0 0.0%
array_keys0 N/A% 0 0.0% -8 -33.3% 0 0.0%