By dotCore
via facebook.com
Submitted: Mar 06 2013 / 21:56
Memcache has been used at Facebook for everything from a look-aside cache for MySQL to a semi-reliable data-store for ads impression data. Of course RAM is relatively expensive, and for working sets that had very large footprints but moderate to low request rates, we believed we could make Memcached much more efficient. Compared with memory, flash provides up to 20 times the capacity per server and still supports tens of thousands of operations per second, so it was the obvious answer to this problem.
Add your comment
