Is it worth the effort to make proxy and server communicate via Unix socket?

Mikhail T. mi+thun at
Mon Oct 1 16:24:25 UTC 2012

In a fairly common setup today, a proxy (say, Varnish) runs on the same 
system as the actual "backend" server (such as Apache).

Would it be worthwhile to alter them both to allow them to talk via a 
socket instead of via TCP (on the lo0 interface)?

Or is the win just too negligible? Thanks!


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