Adam yes just the normal enhance integration, and then adding the Redis plugin on WP sites. When I removed Redis on one server it dropped total IO by about -25%, from 200Mbps of IO to 150Mbps. I was working on other things on that server at the time (namely troubleshooting a Google DDOS attack lol), and I was a bit stunned to see the IO drop so much after removing Redis, plus the accompanying CPU drop. I'll test removal on another server soon to confirm the better resource consumption results.
Maybe the IO wasn't from inter-communicating containers, I'm not fully sure on that since it wasn't worth getting that deep into analysis. My server monitor watches all the network interfaces and the one I was watching while making changes reports the sum of all interfaces, so seeing the drop in IO bandwidth I assumed was internal traffic between containers. In any case, it's IO bandwidth usage and CPU load, and seems pretty significant when it represents 1/4 to 1/3 of total server usage for bandwidth/cpu compared to having it on/off.
