Redis and Memcached are two popular caching engines used in application design. Often, the Redis cache engine is required for more complex application caching needs such as creating a leader board for a game. However, Memcached is more high-performing and is helpful for handling heavy application loads. Each caching engine has its own pros and cons. Let's take a look at the major differences between them, which will help you to make a decision of which to use:
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Memcached |
Redis |
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Offers multithreading |
Single-threaded |
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Able to use more CPU core for faster processing |
Unable to utilize multi-core processor, which results in comparatively slow performance |
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Supports key-value style data |
Supports complex and advanced data structures |
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Lacks data persistence; loses the data stored in cache memory in the event of a crash |
Data can persist using built-in read replicas with failover |
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Easy maintenance |
More complexity involved owing to the need... |