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IDProjectCategoryView StatusDate SubmittedLast Update
0021871mantisbtperformancepublic2016-11-06 17:242017-06-04 14:58
Reportercproensa Assigned Tocproensa  
PrioritynormalSeverityminorReproducibilityhave not tried
Status closedResolutionfixed 
Product Version1.3.3 
Target Version2.5.0Fixed in Version2.5.0 
Summary0021871: Improve db_fetch_array performance
Description

By looking at some profiles, it can be seen that the functions:
db_is_pgsql()
db_is_oracle()
take up about 20% of the time used by db_fetch_array.

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Attached Files
Selección_082.png (214,092 bytes)   
Selección_082.png (214,092 bytes)   

Activities

cproensa

cproensa

2016-11-06 17:41

developer   ~0054450

PR: https://github.com/mantisbt/mantisbt/pull/942
dregad

dregad

2017-05-15 04:37

developer   ~0056857

Fixed via PR https://github.com/mantisbt/mantisbt/pull/1105

Related Changesets

MantisBT: master 06e76774

2017-05-15 00:33

dregad


Details Diff		 Improve db_fetch_array performance

Improve db_fetch_array performance by caching the result from:
- db_is_pgsql()
- db_is_oracle()

Based on profiling, the repeated calls were using up to 20% of total
time for the db_fetch_array execution.

Fixes 0021871, PR https://github.com/mantisbt/mantisbt/pull/1105		 Affected Issues
0021871
mod - core/constant_inc.php Diff File
mod - core/database_api.php Diff File