[Koha-bugs] [Bug 26802] New: Improve speed with records with many items

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=26802

            Bug ID: 26802
           Summary: Improve speed with records with many items
 Change sponsored?: ---
           Product: Koha
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: major
          Priority: P5 - low
         Component: Searching
          Assignee: koha-bugs at lists.koha-community.org
          Reporter: vfernandes at keep.pt
        QA Contact: testopia at bugs.koha-community.org

Koha has a performance problem displaying records with many items in search
results and details pages.

For example, Koha takes around 20/30 seconds to process a record XML with 1000
items using XSLT. The Koha's response speed reduces even more with bigger items
counting.

Maybe we can improve Koha speed with some decisions:

- Don't use the complete XML (record without items) for XLSTs processing.
- Add pagination to the items table (like is done with other Koha tables) and
JS load.


Test case (search results):

- Add some records with 1000 items and the same title
- Try to do a search for the title

Test case (details and other record views):

- Add one records with 1000/2000/3000 items
- Try to open the record

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