[garenp]

The 1k packets you saw probably correspond to the default block size being used for the DB, that is a vestige of using spinning disks. That you were using NFS or any kind of networked filesystem is what I'd say is a performance hostile environment. Did no one think of just not using NFS?

[esaym]

This was before 2012, AWS did not exist. The company had to find rackspace in a data center. Which we couldn't. One of the funding customers "loaned" us a couple of slots in their on premise data center which fit only a bladecenter and single netapp. NFS had advantages, you could dynamically resize live mount points, etc. Plus as I mentioned, using postgresql did away with our performance issues.