DataTables / DataTables/Plugins
SearchHighlight performance on large dataset
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- Dominant language
- JavaScript
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Description
Hi.
It seems, that change with columns highlight (https://github.com/DataTables/Plugins/pull/287) cause full highlights redraw for each column on table search, which lead to performance issue on large data set.
You can compare page freeze time on each key press in search field in previous and current plugin version.
Previous plugin version: https://jsfiddle.net/mqj9Lacf/
Current plugin version: https://jsfiddle.net/ckdhtLnv/6/
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the SearchHighlight plugin and compare the previous and current jsFiddle reproductions linked in the issue, measuring the freeze time for each search-field key press. Trace the highlighting work triggered by table search and determine whether the full redraw occurs once per column; done means large datasets no longer incur the reported repeated redraw performance problem.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript
- Domain
- performance
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100