We did install Redis server 3.0.7 which has made our Magento store 1.9.x a bit better than before, but I just need to ask that all settings which comes out of the box in Redis is fine? or do I need to tune into something as we have much RAM available on machine and I want to cache as much as possible I can.
Also, when I check Redis utilization by running
redis-cli info | grep used_memory_human
it just returns some MB's like 3.72M or less than that(while when using file system caching in Magento it grows to much more) why is that?, can I somewhere define that as much memory Redis can use out of as much Gigs of RAM or is it kind of autoscale which goes up and down according to need?