Comments (2)
RandomFractals
commented on May 28, 2024
Tried it with vizgen mouse genome data: https://vizgen.com/data-release-program/
One of their data files is ~207 Mbytes, has 650 columns and over 78K rows. That's about 50 million of dense wide column mostly numeric data points to parse.
This took a while to load and Tabulator table is not very responsive on scrolling ...
I might need to move reading large data files to a worker thread because of all the CSV line data parsing. Docs on nodejs worker threads: https://nodejs.org/api/worker_threads.html
Even with the added table.iter rows stream reader, ext. host main thread is blocked till all data is read and the first 1K rows are sent to the table webview for display.
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RandomFractals
commented on May 28, 2024
Closing this. Will handle the rest of large CSV data parsing and loading optimizations in #58 and #59.
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Related Issues (20)
- Package and publish https data files loading release HOT 1
- Document tabular-data-viewer commands HOT 1
- Create built-in Data Packages picker HOT 5
- Update vscode dev dependencies to the latest v1.64.0
- List tabular data resources for a data package HOT 1
- Add Data Packages sidebar views HOT 1
- Use active text editor document Uri for View Table command
- Add Open Text Document command and context menu options for data files displayed in Table View HOT 1
- Add View Data File on GitHub command and context menus for Table views with public datasets from github HOT 1
- Move commands registration from src/extension.ts to src/commands/commands.ts
- Package and publish Uri handler and Data Packages support release HOT 1
- Add Charts section to README.md
- Add Flat Data Grid view option
- Update dependencies and vscode extension dev libraries to the latest v1.66
- Enable Tabular data views to work on github.dev and in the web version of vscode IDE
- Update Tabulator to v5.1.8
- Update Perspective view libraries to the latest v1.3.6
- Use shields.io for version, installs, and downloads badges in docs HOT 1
- Use table icon for View Table context menu in open CSV files HOT 1
- Refine tabular data loading errors HOT 7
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