memcached’s caching mechanism memcached uses the Slab Allocation memory allocation mechanism. You can read this article Memcached’s data storage method This mechanism has a disadvantage. It divides the allocated memory into chunks (chuck) of a specific length, such as : Storing 70-byte data into 88-byte blocks results in a waste of 18 bytes
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It’s not about how much memory you save.
memcached’s caching mechanism
memcached uses the Slab Allocation memory allocation mechanism. You can read this article Memcached’s data storage method
This mechanism has a disadvantage. It divides the allocated memory into chunks (chuck) of a specific length, such as : Storing 70-byte data into 88-byte blocks results in a waste of 18 bytes
Memory allocation process
Redis will be added if needed or later.
Yes. Because they are memory-based databases.
Although it can be transformed to use the disk to cache part of the data, doing so will lose its own meaning.