Qasem Hajizadeh Qasem-h

## memcache_vs_redis.md

      
        
          
            
              
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                Qasem-h
                / memcache_vs_redis.md
            
            
              Created
              October 3, 2016 23:11
                — forked from psahni/memcache_vs_redis.md
            
              
                Comparison of memcache and redis [ Ruby on Rails ]
              
          
        
      
        
  
      
    ##Memcache
Memcache can be used for caching data in main memory using key value pair. So it reduces database load significantly.
It is actually a storage engine used by Rack::Cache which is a middleware in Rails that provides HTTP caching. For example
we can store a complex query result into a key
Rails.cache.fetch(key) do
  #......Processing
end