Data type optimizations
In Redis, all data types can use different encodings to save memory or improve performance. For instance, a String that has only digits (for example, 12345) uses less memory than a string of letters (for example, abcde) because they use different encodings. Data types will use different encodings based on thresholds defined in the Redis server configuration.
Note
The redis-cli will be used in this section to inspect the encodings of each data type and to demonstrate how configurations can be tweaked to optimize for memory.
When Redis is downloaded, it comes with a file called redis.conf. This file is well documented and has all the Redis configuration directives, although some of them are commented out. Usually, the default ...
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