How to Optimize Blazor Server Performance with Large Datasets?

Question

I'm building a Blazor Server application that needs to display and interact with a large dataset (millions of records). Currently, fetching and rendering all data at once is causing significant performance issues. I'm looking for effective strategies to optimize the application for handling such large datasets without compromising user experience.

Potential challenges I'm facing:

• Slow initial load times
• UI responsiveness issues
• Memory consumption concerns

I've considered the following approaches:

• Pagination: Implementing server-side pagination to load data in chunks.
• Virtualization: Using virtual scrolling to render only visible data.
• Data filtering and sorting: Applying filtering and sorting on the server-side to reduce data transferred.
• Caching: Implementing caching mechanisms to store frequently accessed data.

I'm interested in learning about:

• Best practices for handling large datasets in Blazor Server
• Performance optimization techniques
• Recommended libraries or frameworks for efficient data management
• Real-world examples and solutionsI'm building a Blazor Server application that needs to display and interact with a large dataset (millions of records). Currently, fetching and rendering all data at once is causing significant performance issues. I'm looking for effective strategies to optimize the application for handling such large datasets without compromising user experience. Potential challenges I'm facing:
  • Slow initial load times
  • UI responsiveness issues
  • Memory consumption concerns
  I've considered the following approaches:
  • Pagination: Implementing server-side pagination to load data in chunks.
  • Virtualization: Using virtual scrolling to render only visible data.
  • Data filtering and sorting: Applying filtering and sorting on the server-side to reduce data transferred.
  • Caching: Implementing caching mechanisms to store frequently accessed data.
  I'm interested in learning about:
  • Best practices for handling large datasets in Blazor Server
  • Performance optimization techniques
  • Recommended libraries or frameworks for efficient data management
  • Real-world examples and solutions

Answer 1

Hi @MissKiarra,

Firstly, as you said , there is no need to load all the data every time when the user access the blazor web app, you could use the server-side pagination. Like this article shows, using the EF core with paging inside the blazor.

Secondly, you could consider using the Virtualization, this is the built-in virtualization support. Details, you could refer to this article.

Virtualization is a technique for limiting UI rendering to just the parts that are currently visible. For example, virtualization is helpful when the app must render a long list of items and only a subset of items is required to be visible at any given time.

Use the Virtualize<TItem> component when:

• Rendering a set of data items in a loop.
• Most of the items aren't visible due to scrolling.
• The rendered items are the same size.

When the user scrolls to an arbitrary point in the Virtualize<TItem> component's list of items, the component calculates the visible items to show. Unseen items aren't rendered.

Thirdly, you could use cache, for example, you could use redis or else to cache the common data from the database to reduce the load time for querying the database.

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