Spreadsheet too slow when updating cell or deleting a row
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- Dominant language
- Java
- Stars
- 50
- Forks
- 53
- Avg merge
- 1d 21h
- Merged PRs (30d)
- 1
Description
When a sheet contains significantly number of rows (~4000), then updating even a single cell, or deleting the whole row, or column becomes really really slow.
I've attached file with some test data.
How to reproduce?
Plase go to Vaadin Spreadsheet Demo page and import file, then update particular cell, or even worse delete a row using context menu.
It takes significantly number of seconds to complete.
Test data: test.xlsx
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First steps
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by importing the attached test.xlsx file in the Vaadin Spreadsheet Demo and reproducing a cell update and row or column deletion through the context menu. Profile the slow operation paths and verify that these actions complete without the reported multi-second delay on a sheet of about 4,000 rows.
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Assessment
- Tech stack
- java
- Domain
- performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 38/100