Performance of Redis sets

The Majority of Set operations including finding an element, adding and removing are O(1), i.e constant time-complexity. However, when performing the SMEMBERS command on big sets with hundreds of thousands or more members, you should proceed with caution. This command has an O(n) execution time and returns the complete set in a single response. You can consider the SSCAN, which allows you to iteratively retrieve all members of a set.

Complete tutorial on Sets in Redis

In Redis, sets are collections of unique elements, where each element is unique and the order of elements doesn’t matter, as they are unordered. They are handy and useful while working with unique items. Sets are a great way to store and manage various unique items. In Redis, there are several commands for using sets that have their own use cases.

Important Topics for Sets in Redis

  • Installation & getting started with Redis
  • Syntax and Commands of Redis Sets
  • Performance of Redis sets:
  • Conclusion

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Installation & getting started with Redis

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Syntax and Commands of Redis Sets

Before, getting started with Sets or any other commands of Redis make sure you have successfully installed Redis on your system/package manager/docker or you won’t be able to use Redis CLI or its commands. We will be using Docker here for the installation of Redis, after you have successfully installed Docker, follow the below steps:-...

Performance of Redis sets:

1. “sadd” command:...

Conclusion

The Majority of Set operations including finding an element, adding and removing are O(1), i.e constant time-complexity. However, when performing the SMEMBERS command on big sets with hundreds of thousands or more members, you should proceed with caution. This command has an O(n) execution time and returns the complete set in a single response. You can consider the SSCAN, which allows you to iteratively retrieve all members of a set....

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