This looks interesting, and I'd like to read the article more, but the graphs are so eye-drawing and completely unreadable that I'm unable to make sense of them. Please make your x/y readable (font roughly 200% larger...) and actually label which line is which.

Also to provide some article-related input, in some NoSQL style databases latency makes a very surprising difference in speed. Redis is especially affected. When network latency is introduced on even the 50ms level GET/SET operations drop to double digit (vs. 15k+/s in normal operation even on small servers)