QuickCache vs WP Fastest Cache on Raspberry Pi
I recently saw a plugin that looked appealing - WP Fastest Cache. I saw that it cached HTML pages, and thought that might significantly speed up WordPress on my Raspberry Pi. So I tried this plugin, and compared it to Quick Cache. I took an average of 5 page loads with tools.pingdom.com, after a few initial runs to get out any hiccups in the caching.
wp-fastcache Avg: 5.038 quick-cache Avg: 2.328
As you can see, quick cache handily beat out the wp-fastcache plugin. The above results for wp-fastcache are with compression (as gz), repeat user speed up, and new post deleting cache turned off. I tried enabling these options, and got an average of 5.05 (identical, basically).
This test was done on a Raspberry Pi, Model B, running Arch Linux, Nginx, and WordPress 3.9.1. I had to switch to permalinks for the wp fastest cache plugin to work. This site had the best description for how to perform this task.
UPDATE: it looks like wp fast cache requires apache, so it probably wasn't caching during the tests I performed above. I may try a caching system that is compatible with nginx.