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::checksumTags

Drupal\Core\Cache\DatabaseBackend::checksumTagsRun #512a1f7f217a6Run #512a20b11c1abDiffDiff%
Number of Function Calls107 122 15 14.0%
Incl. Wall Time (microsec)2,620 2,955 335 12.8%
Incl. Wall Time (microsec) per call 24 24 -0 -1.1%
Excl. Wall Time (microsec)1,113 1,276 163 14.6%
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)107,160 119,592 12,432 11.6%
Incl. MemUse (bytes) per call 1,001 980 -21 -2.1%
Excl. MemUse (bytes)-109,456 -119,208 -9,752 -8.9%
Incl. PeakMemUse (bytes)118,992 146,296 27,304 22.9%
Incl. PeakMemUse (bytes) per call 1,112 1,199 87 7.8%
Excl. PeakMemUse (bytes)33,560 42,576 9,016 26.9%

Parent/Child Regression/Improvement report for Drupal\Core\Cache\DatabaseBackend::checksumTags [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::checksumTags15 22.7% 335 1.0% 4,000 12.5% 12,432 0.4% 27,304 0.8%
Exclusive Metrics Diff for Current Function163 48.7% 0 0.0% -9,752 -78.4% 9,016 33.0%
Parent function
Drupal\Core\Cache\DatabaseBackend::prepareItem15 100.0% 335 100.0% 4,000 100.0% 12,432 100.0% 27,304 100.0%
Child functions
Drupal\Core\Database\Connection::query1 2.0% 86 25.7% 0 0.0% 5,168 41.6% 5,960 21.8%
drupal_static15 29.4% 30 9.0% 4,000 100.0% 0 0.0% 680 2.5%
array_diff16 31.4% 21 6.3% 0 0.0% 3,832 30.8% 3,360 12.3%
array_keys16 31.4% 21 6.3% 0 0.0% 11,376 91.5% 5,984 21.9%
Drupal\Core\Database\Statement::fetchAllAssoc1 2.0% 12 3.6% 0 0.0% 1,576 12.7% 1,848 6.8%
Drupal\Core\Database\Database::getConnection1 2.0% 3 0.9% 0 0.0% 0 0.0% 456 1.7%
array_fill_keys1 2.0% -1 -0.3% 0 0.0% 232 1.9% 0 0.0%