@takeshitakenji GS/PA isn't doing much with it at all though, so I don't know what optimizations you can make on our end, though I will run through things with a profiler and take a look.

The problem becomes TCP has a given overhead for every connection even if I get the php execution time down to fractions of a microseconds, doubly so if you're needing DNS lookups.

This is actually why I wondered if we could set it up to use a unix socket for the connection.