Fetching the Memcached 'stats slabs' command in Ruby is useful when a developer wants to understand the distribution and usage of slab classes within their Memcached instance. This information can help optimize memory usage by identifying slab classes that are frequently used or underutilized.
In this example, we first require the
memcached gem. Then, we create a new Memcached instance pointed at 'localhost' on port 11211. We then call the
stats method which returns a hash containing various statistics about the Memcached server. The
:slabs key in this hash contains the slabs statistics we're interested in.
gem install memcachedand then include it in your script with
Q: What does 'stats slabs' output mean? A: The 'stats slabs' command gives you information about the distribution and usage of different slab classes in Memcached. Each slab class represents a range of item sizes, so this output can help you understand how memory is being used in your application.
Q: How can I use this information to optimize my application? A: By understanding how different item sizes are distributed in your cache, you can potentially optimize your data structures or caching strategy to make more efficient use of memory.